Opinion Poll by Opinium for The Observer, 10–12 April 2018

Voting Intentions | Seats | Coalitions | Technical Information

Voting Intentions

Graph with voting intentions not yet produced

Confidence Intervals

Party Last Result Poll Result 80% Confidence Interval 90% Confidence Interval 95% Confidence Interval 99% Confidence Interval
Conservative Party 42.4% 40.0% 38.6–41.4% 38.2–41.8% 37.9–42.2% 37.2–42.8%
Labour Party 40.0% 40.0% 38.6–41.4% 38.2–41.8% 37.9–42.2% 37.2–42.8%
Liberal Democrats 7.4% 7.0% 6.3–7.8% 6.1–8.0% 6.0–8.2% 5.7–8.6%
UK Independence Party 1.8% 5.0% 4.4–5.7% 4.2–5.9% 4.1–6.0% 3.8–6.4%
Scottish National Party 3.0% 4.0% 3.5–4.6% 3.3–4.8% 3.2–4.9% 3.0–5.3%
Green Party 1.6% 2.0% 1.6–2.5% 1.5–2.6% 1.5–2.7% 1.3–2.9%
Plaid Cymru 0.5% 1.0% 0.8–1.4% 0.7–1.4% 0.6–1.5% 0.5–1.7%

Note: The poll result column reflects the actual value used in the calculations. Published results may vary slightly, and in addition be rounded to fewer digits.

Seats

Graph with seats not yet produced

Confidence Intervals

Party Last Result Median 80% Confidence Interval 90% Confidence Interval 95% Confidence Interval 99% Confidence Interval
Conservative Party 317 291 269–313 266–320 263–325 255–332
Labour Party 262 272 252–291 245–296 241–297 237–306
Liberal Democrats 12 11 5–14 4–15 3–16 2–19
UK Independence Party 0 1 1 1 1 1
Scottish National Party 35 54 45–56 42–57 40–58 29–58
Green Party 1 1 1 1 1 1
Plaid Cymru 4 5 4–5 4–6 4–8 4–8

Conservative Party

For a full overview of the results for this party, see the Conservative Party page.

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
248 0% 100%  
249 0% 99.9%  
250 0% 99.9%  
251 0% 99.9%  
252 0% 99.9%  
253 0.2% 99.8%  
254 0.1% 99.6%  
255 0.1% 99.5%  
256 0.1% 99.5%  
257 0.2% 99.4%  
258 0.2% 99.2%  
259 0.2% 99.0%  
260 0.2% 98.8%  
261 0.4% 98.6%  
262 0.5% 98%  
263 1.3% 98%  
264 0.6% 96%  
265 0.6% 96%  
266 1.0% 95%  
267 2% 94%  
268 0.5% 92%  
269 2% 92%  
270 1.4% 90%  
271 2% 89%  
272 1.0% 87%  
273 2% 86%  
274 2% 84%  
275 2% 82%  
276 3% 80%  
277 4% 77%  
278 2% 73%  
279 1.0% 71%  
280 3% 70%  
281 2% 67%  
282 2% 65%  
283 2% 64%  
284 1.3% 62%  
285 1.0% 60%  
286 2% 59%  
287 3% 58%  
288 1.5% 55%  
289 1.1% 54%  
290 2% 53%  
291 2% 50% Median
292 3% 48%  
293 3% 45%  
294 2% 42%  
295 2% 41%  
296 2% 38%  
297 3% 37%  
298 2% 34%  
299 1.4% 32%  
300 2% 30%  
301 1.3% 29%  
302 2% 27%  
303 2% 26%  
304 3% 24%  
305 1.0% 21%  
306 0.6% 20%  
307 2% 19%  
308 0.9% 17%  
309 2% 16%  
310 0.9% 14%  
311 3% 13%  
312 0.6% 11%  
313 1.0% 10%  
314 0.9% 9%  
315 0.4% 8%  
316 1.5% 8%  
317 0.5% 6% Last Result
318 0.2% 6%  
319 0.4% 6%  
320 0.5% 5%  
321 0.6% 5%  
322 0.2% 4%  
323 0.5% 4%  
324 0.6% 3%  
325 0.6% 3%  
326 0.5% 2% Majority
327 0.2% 2%  
328 0.3% 1.4%  
329 0.1% 1.1%  
330 0.3% 1.0%  
331 0.2% 0.7%  
332 0.1% 0.5%  
333 0.1% 0.4%  
334 0.1% 0.3%  
335 0.1% 0.3%  
336 0% 0.2%  
337 0% 0.1%  
338 0.1% 0.1%  
339 0% 0.1%  
340 0% 0%  

Labour Party

For a full overview of the results for this party, see the Labour Party page.

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
230 0% 100%  
231 0% 99.9%  
232 0% 99.9%  
233 0% 99.9%  
234 0.1% 99.9%  
235 0% 99.8%  
236 0.1% 99.8%  
237 0.5% 99.7%  
238 0.3% 99.2%  
239 0.3% 98.9%  
240 1.0% 98.5%  
241 0.3% 98%  
242 0.2% 97%  
243 0.2% 97%  
244 2% 97%  
245 0.4% 95%  
246 0.1% 95%  
247 0.4% 95%  
248 2% 94%  
249 1.0% 92%  
250 0.7% 91%  
251 0.5% 91%  
252 1.1% 90%  
253 0.2% 89%  
254 0.3% 89%  
255 3% 88%  
256 2% 85%  
257 2% 83%  
258 0.5% 82%  
259 3% 81%  
260 1.0% 78%  
261 0.8% 77%  
262 7% 76% Last Result
263 2% 69%  
264 0.6% 67%  
265 0.6% 67%  
266 2% 66%  
267 1.1% 64%  
268 0.6% 63%  
269 4% 63%  
270 3% 59%  
271 2% 56%  
272 6% 54% Median
273 2% 47%  
274 1.1% 46%  
275 0.5% 45%  
276 0.4% 44%  
277 0.3% 44%  
278 0.7% 44%  
279 5% 43%  
280 3% 37%  
281 0.5% 34%  
282 0.7% 34%  
283 7% 33%  
284 2% 26%  
285 0.5% 24%  
286 5% 23%  
287 2% 18%  
288 0.3% 16%  
289 0.4% 16%  
290 4% 15%  
291 2% 11%  
292 0.6% 10%  
293 3% 9%  
294 0.7% 6%  
295 0.4% 6%  
296 2% 5%  
297 1.0% 3%  
298 0.6% 2%  
299 0.3% 2%  
300 0.1% 2%  
301 0.4% 1.5%  
302 0.2% 1.1%  
303 0.1% 0.9%  
304 0% 0.8%  
305 0.2% 0.7%  
306 0.2% 0.5%  
307 0.1% 0.3%  
308 0.1% 0.2%  
309 0.1% 0.2%  
310 0% 0.1%  
311 0% 0.1%  
312 0% 0.1%  
313 0% 0.1%  
314 0% 0%  

Liberal Democrats

For a full overview of the results for this party, see the Liberal Democrats page.

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
1 0.1% 100%  
2 1.4% 99.9%  
3 2% 98.6%  
4 3% 97%  
5 9% 94%  
6 3% 84%  
7 9% 81%  
8 3% 72%  
9 10% 69%  
10 6% 59%  
11 18% 53% Median
12 13% 35% Last Result
13 7% 22%  
14 8% 15%  
15 3% 7%  
16 2% 4%  
17 0.7% 2%  
18 0.5% 1.2%  
19 0.4% 0.6%  
20 0.1% 0.2%  
21 0% 0.1%  
22 0% 0%  

UK Independence Party

For a full overview of the results for this party, see the UK Independence Party page.

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
0 0.1% 100% Last Result
1 99.9% 99.9% Median
2 0% 0%  

Scottish National Party

For a full overview of the results for this party, see the Scottish National Party page.

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
23 0% 100%  
24 0% 99.9%  
25 0% 99.9%  
26 0% 99.9%  
27 0.1% 99.8%  
28 0.1% 99.8%  
29 0.2% 99.7%  
30 0.1% 99.5%  
31 0% 99.4%  
32 0.1% 99.4%  
33 0.2% 99.3%  
34 0.1% 99.1%  
35 0.1% 99.0% Last Result
36 0.1% 98.9%  
37 0.1% 98.8%  
38 0.3% 98.7%  
39 0.7% 98%  
40 0.7% 98%  
41 1.4% 97%  
42 2% 96%  
43 0.9% 94%  
44 1.0% 93%  
45 2% 92%  
46 0.9% 90%  
47 2% 89%  
48 3% 87%  
49 4% 84%  
50 3% 80%  
51 7% 76%  
52 6% 69%  
53 9% 63%  
54 25% 54% Median
55 19% 30%  
56 3% 11%  
57 4% 8%  
58 4% 4%  
59 0% 0%  

Green Party

For a full overview of the results for this party, see the Green Party page.

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
1 100% 100% Last Result, Median

Plaid Cymru

For a full overview of the results for this party, see the Plaid Cymru page.

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
2 0.1% 100%  
3 0.1% 99.9%  
4 12% 99.8% Last Result
5 80% 88% Median
6 3% 8%  
7 1.3% 5%  
8 4% 4%  
9 0.1% 0.1%  
10 0% 0%  

Coalitions

Graph with coalitions seats not yet produced

Confidence Intervals

Coalition Last Result Median Majority? 80% Confidence Interval 90% Confidence Interval 95% Confidence Interval 99% Confidence Interval
Conservative Party – Scottish National Party – Plaid Cymru 356 347 92% 327–369 323–375 320–380 312–387
Conservative Party – Scottish National Party 352 342 85% 322–364 318–370 315–375 307–382
Labour Party – Liberal Democrats – Scottish National Party – Plaid Cymru 313 339 79% 317–361 310–364 305–367 298–375
Labour Party – Liberal Democrats – Scottish National Party 309 334 69% 312–356 305–359 300–362 293–370
Labour Party – Scottish National Party – Plaid Cymru 301 330 61% 308–350 302–353 297–356 290–363
Labour Party – Scottish National Party 297 325 49% 303–345 297–348 292–351 284–358
Conservative Party – Liberal Democrats 329 300 7% 280–322 277–328 274–333 267–340
Conservative Party – Plaid Cymru 321 296 5% 274–318 271–325 268–330 260–337
Conservative Party 317 291 2% 269–313 266–320 263–325 255–332
Labour Party – Liberal Democrats – Plaid Cymru 278 288 0.2% 266–308 260–312 255–315 248–323
Labour Party – Liberal Democrats 274 283 0.1% 261–303 255–307 250–310 243–318
Labour Party – Plaid Cymru 266 277 0% 257–296 251–301 246–302 242–310
Labour Party 262 272 0% 252–291 245–296 241–297 237–306

Conservative Party – Scottish National Party – Plaid Cymru

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
302 0% 100%  
303 0% 99.9%  
304 0% 99.9%  
305 0% 99.9%  
306 0% 99.9%  
307 0% 99.9%  
308 0.1% 99.9%  
309 0.1% 99.8%  
310 0.1% 99.7%  
311 0.1% 99.6%  
312 0.1% 99.5%  
313 0.2% 99.4%  
314 0.1% 99.2%  
315 0.1% 99.1%  
316 0.3% 99.0%  
317 0.3% 98.7%  
318 0.3% 98%  
319 0.5% 98%  
320 0.5% 98%  
321 0.4% 97%  
322 0.7% 97%  
323 1.4% 96%  
324 0.6% 95%  
325 2% 94%  
326 0.6% 92% Majority
327 2% 91%  
328 2% 90%  
329 1.0% 88%  
330 2% 87%  
331 2% 85%  
332 3% 83%  
333 2% 80%  
334 0.9% 78%  
335 4% 77%  
336 5% 73%  
337 1.1% 68%  
338 1.3% 67%  
339 1.4% 65%  
340 3% 64%  
341 1.1% 61%  
342 2% 60%  
343 2% 59%  
344 1.3% 57%  
345 2% 56%  
346 3% 54%  
347 2% 51%  
348 0.7% 49%  
349 1.3% 49%  
350 2% 47% Median
351 3% 45%  
352 3% 42%  
353 2% 38%  
354 2% 36%  
355 1.2% 34%  
356 2% 33% Last Result
357 3% 32%  
358 1.4% 28%  
359 3% 27%  
360 0.7% 24%  
361 3% 24%  
362 1.5% 21%  
363 1.2% 20%  
364 2% 18%  
365 1.3% 17%  
366 1.1% 15%  
367 2% 14%  
368 2% 12%  
369 1.2% 11%  
370 1.1% 9%  
371 0.7% 8%  
372 0.6% 8%  
373 1.0% 7%  
374 0.8% 6%  
375 0.6% 5%  
376 0.6% 5%  
377 0.3% 4%  
378 0.6% 4%  
379 0.3% 3%  
380 0.5% 3%  
381 0.4% 2%  
382 0.2% 2%  
383 0.3% 2%  
384 0.2% 2%  
385 0.6% 1.4%  
386 0.2% 0.8%  
387 0.2% 0.6%  
388 0.1% 0.4%  
389 0.1% 0.3%  
390 0.1% 0.2%  
391 0% 0.1%  
392 0% 0.1%  
393 0% 0.1%  
394 0% 0.1%  
395 0% 0%  

Conservative Party – Scottish National Party

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
298 0% 100%  
299 0% 99.9%  
300 0% 99.9%  
301 0% 99.9%  
302 0% 99.9%  
303 0.1% 99.9%  
304 0% 99.8%  
305 0.1% 99.8%  
306 0.1% 99.7%  
307 0.1% 99.6%  
308 0.2% 99.5%  
309 0.1% 99.2%  
310 0.1% 99.1%  
311 0.3% 99.0%  
312 0.3% 98.7%  
313 0.3% 98%  
314 0.6% 98%  
315 0.4% 98%  
316 0.5% 97%  
317 0.6% 97%  
318 1.5% 96%  
319 0.4% 95%  
320 2% 94%  
321 0.8% 92%  
322 2% 91%  
323 1.3% 90%  
324 2% 88%  
325 1.5% 87%  
326 2% 85% Majority
327 2% 83%  
328 3% 81%  
329 0.8% 78%  
330 4% 77%  
331 5% 73%  
332 0.9% 68%  
333 0.9% 67%  
334 2% 66%  
335 3% 64%  
336 0.9% 61%  
337 2% 60%  
338 2% 59%  
339 1.0% 57%  
340 2% 56%  
341 3% 54%  
342 2% 51%  
343 0.6% 49%  
344 2% 49%  
345 2% 47% Median
346 4% 45%  
347 3% 42%  
348 3% 38%  
349 1.5% 36%  
350 1.1% 34%  
351 2% 33%  
352 4% 31% Last Result
353 1.4% 28%  
354 2% 26%  
355 0.8% 24%  
356 2% 23%  
357 0.8% 21%  
358 2% 20%  
359 2% 18%  
360 0.7% 16%  
361 1.4% 15%  
362 1.4% 14%  
363 2% 13%  
364 1.1% 10%  
365 1.0% 9%  
366 0.7% 8%  
367 0.6% 8%  
368 0.9% 7%  
369 0.8% 6%  
370 0.6% 5%  
371 0.6% 5%  
372 0.4% 4%  
373 0.5% 4%  
374 0.3% 3%  
375 0.5% 3%  
376 0.4% 2%  
377 0.3% 2%  
378 0.2% 2%  
379 0.1% 2%  
380 0.6% 1.4%  
381 0.2% 0.8%  
382 0.2% 0.6%  
383 0.2% 0.4%  
384 0.1% 0.2%  
385 0.1% 0.2%  
386 0% 0.1%  
387 0% 0.1%  
388 0% 0.1%  
389 0% 0%  

Labour Party – Liberal Democrats – Scottish National Party – Plaid Cymru

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
291 0% 100%  
292 0.1% 99.9%  
293 0% 99.9%  
294 0% 99.9%  
295 0.1% 99.8%  
296 0.1% 99.7%  
297 0.1% 99.7%  
298 0.1% 99.6%  
299 0.2% 99.5%  
300 0.3% 99.3%  
301 0.1% 99.0%  
302 0.3% 98.9%  
303 0.2% 98.6%  
304 0.5% 98%  
305 0.6% 98%  
306 0.6% 97%  
307 0.5% 97%  
308 0.2% 96%  
309 0.6% 96%  
310 0.5% 95%  
311 0.4% 95%  
312 0.2% 94%  
313 0.5% 94% Last Result
314 1.5% 94%  
315 0.4% 92%  
316 0.9% 92%  
317 1.0% 91%  
318 0.6% 90%  
319 3% 89%  
320 0.9% 87%  
321 2% 86%  
322 0.9% 84%  
323 2% 83%  
324 0.6% 81%  
325 1.0% 80%  
326 3% 79% Majority
327 2% 76%  
328 2% 74%  
329 1.3% 73%  
330 2% 71%  
331 1.4% 70%  
332 2% 68%  
333 3% 66%  
334 2% 63%  
335 2% 62%  
336 2% 59%  
337 3% 58%  
338 3% 55%  
339 2% 52%  
340 2% 50%  
341 1.1% 47%  
342 1.5% 46% Median
343 3% 45%  
344 2% 42%  
345 1.0% 41%  
346 1.3% 40%  
347 2% 38%  
348 2% 36%  
349 2% 35%  
350 3% 33%  
351 1.0% 30%  
352 2% 29%  
353 4% 27%  
354 3% 23%  
355 2% 20%  
356 2% 18%  
357 2% 16%  
358 1.0% 14%  
359 2% 13%  
360 1.4% 11%  
361 2% 10%  
362 0.5% 8%  
363 2% 8%  
364 1.0% 6%  
365 0.6% 5%  
366 0.6% 4%  
367 1.3% 4%  
368 0.5% 2%  
369 0.4% 2%  
370 0.2% 1.4%  
371 0.2% 1.2%  
372 0.2% 1.0%  
373 0.2% 0.8%  
374 0.1% 0.6%  
375 0.1% 0.5%  
376 0.1% 0.5%  
377 0.2% 0.4%  
378 0% 0.2%  
379 0% 0.1%  
380 0% 0.1%  
381 0% 0.1%  
382 0% 0.1%  
383 0% 0%  

Labour Party – Liberal Democrats – Scottish National Party

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
286 0% 100%  
287 0.1% 99.9%  
288 0% 99.9%  
289 0% 99.8%  
290 0.1% 99.8%  
291 0% 99.7%  
292 0.1% 99.7%  
293 0.1% 99.5%  
294 0.2% 99.4%  
295 0.3% 99.2%  
296 0.1% 98.9%  
297 0.3% 98.8%  
298 0.2% 98%  
299 0.5% 98%  
300 0.5% 98%  
301 0.7% 97%  
302 0.6% 97%  
303 0.2% 96%  
304 0.6% 96%  
305 0.5% 95%  
306 0.4% 95%  
307 0.3% 94%  
308 0.6% 94%  
309 1.5% 94% Last Result
310 0.4% 92%  
311 0.9% 92%  
312 1.1% 91%  
313 0.6% 90%  
314 2% 89%  
315 1.3% 87%  
316 2% 86%  
317 0.9% 83%  
318 1.3% 83%  
319 1.2% 81%  
320 1.0% 80%  
321 2% 79%  
322 3% 77%  
323 2% 74%  
324 1.4% 72%  
325 2% 71%  
326 1.4% 69% Majority
327 2% 68%  
328 3% 66%  
329 1.5% 63%  
330 2% 62%  
331 2% 59%  
332 3% 58%  
333 3% 54%  
334 2% 52%  
335 2% 50%  
336 1.1% 47%  
337 1.2% 46% Median
338 3% 45%  
339 2% 42%  
340 0.7% 40%  
341 2% 40%  
342 1.2% 38%  
343 2% 37%  
344 2% 35%  
345 3% 33%  
346 1.3% 30%  
347 2% 29%  
348 4% 27%  
349 3% 23%  
350 1.5% 20%  
351 1.3% 18%  
352 3% 17%  
353 0.8% 14%  
354 2% 13%  
355 1.4% 11%  
356 2% 10%  
357 1.1% 8%  
358 1.5% 7%  
359 1.1% 6%  
360 0.7% 5%  
361 0.5% 4%  
362 1.4% 4%  
363 0.5% 2%  
364 0.3% 2%  
365 0.3% 1.5%  
366 0.2% 1.2%  
367 0.2% 1.0%  
368 0.1% 0.8%  
369 0.1% 0.7%  
370 0.1% 0.6%  
371 0.1% 0.5%  
372 0.2% 0.4%  
373 0.1% 0.2%  
374 0% 0.1%  
375 0% 0.1%  
376 0% 0.1%  
377 0% 0.1%  
378 0% 0%  

Labour Party – Scottish National Party – Plaid Cymru

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
283 0% 100%  
284 0% 99.9%  
285 0% 99.9%  
286 0.1% 99.9%  
287 0.1% 99.8%  
288 0.1% 99.7%  
289 0.1% 99.6%  
290 0.2% 99.5%  
291 0.2% 99.3%  
292 0.1% 99.1%  
293 0.2% 99.0%  
294 0.2% 98.7%  
295 0.5% 98.5%  
296 0.4% 98%  
297 0.7% 98%  
298 0.4% 97%  
299 0.8% 97%  
300 0.3% 96%  
301 0.3% 96% Last Result
302 1.0% 95%  
303 0.8% 94%  
304 0.4% 93%  
305 0.8% 93%  
306 0.7% 92%  
307 1.3% 92%  
308 1.4% 90%  
309 0.9% 89%  
310 0.5% 88%  
311 0.8% 87%  
312 3% 87%  
313 0.6% 83%  
314 1.3% 83%  
315 3% 81%  
316 1.2% 79%  
317 1.3% 78%  
318 2% 76%  
319 2% 74%  
320 1.1% 72%  
321 3% 71%  
322 3% 68%  
323 2% 65%  
324 0.8% 63%  
325 2% 62%  
326 3% 61% Majority
327 1.2% 58%  
328 3% 57%  
329 2% 54%  
330 2% 51%  
331 4% 49% Median
332 2% 45%  
333 0.6% 43%  
334 2% 43%  
335 2% 41%  
336 0.7% 39%  
337 2% 38%  
338 3% 37%  
339 3% 34%  
340 1.3% 31%  
341 2% 30%  
342 4% 27%  
343 2% 24%  
344 1.4% 22%  
345 4% 20%  
346 2% 17%  
347 0.9% 15%  
348 2% 14%  
349 2% 12%  
350 2% 10%  
351 1.1% 8%  
352 1.1% 7%  
353 1.4% 6%  
354 0.4% 5%  
355 0.9% 4%  
356 1.4% 3%  
357 0.4% 2%  
358 0.2% 2%  
359 0.4% 1.4%  
360 0.2% 1.0%  
361 0.1% 0.8%  
362 0% 0.7%  
363 0.2% 0.6%  
364 0.1% 0.5%  
365 0.2% 0.4%  
366 0% 0.2%  
367 0% 0.2%  
368 0.1% 0.1%  
369 0% 0.1%  
370 0% 0%  

Labour Party – Scottish National Party

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
277 0% 100%  
278 0% 99.9%  
279 0% 99.9%  
280 0% 99.9%  
281 0.1% 99.8%  
282 0.1% 99.8%  
283 0.1% 99.6%  
284 0.1% 99.6%  
285 0.2% 99.5%  
286 0.2% 99.3%  
287 0.2% 99.1%  
288 0.2% 98.9%  
289 0.2% 98.7%  
290 0.5% 98%  
291 0.4% 98%  
292 0.7% 98%  
293 0.4% 97%  
294 0.8% 97%  
295 0.5% 96%  
296 0.3% 95%  
297 1.0% 95% Last Result
298 0.7% 94%  
299 0.5% 93%  
300 0.8% 93%  
301 0.5% 92%  
302 1.4% 92%  
303 1.5% 90%  
304 0.8% 89%  
305 0.5% 88%  
306 0.9% 87%  
307 3% 86%  
308 1.2% 84%  
309 2% 82%  
310 2% 81%  
311 1.4% 79%  
312 1.5% 77%  
313 2% 76%  
314 2% 74%  
315 0.7% 72%  
316 3% 71%  
317 4% 68%  
318 2% 65%  
319 0.9% 63%  
320 2% 62%  
321 2% 60%  
322 1.1% 58%  
323 3% 57%  
324 2% 54%  
325 2% 52%  
326 5% 49% Median, Majority
327 1.3% 45%  
328 0.8% 43%  
329 1.4% 43%  
330 1.5% 41%  
331 2% 40%  
332 1.4% 38%  
333 2% 37%  
334 3% 35%  
335 2% 31%  
336 2% 30%  
337 4% 27%  
338 2% 24%  
339 0.9% 22%  
340 3% 21%  
341 2% 17%  
342 0.9% 15%  
343 2% 14%  
344 1.5% 12%  
345 2% 10%  
346 2% 9%  
347 0.8% 7%  
348 1.3% 6%  
349 0.5% 5%  
350 0.9% 4%  
351 1.4% 3%  
352 0.4% 2%  
353 0.3% 2%  
354 0.3% 1.4%  
355 0.2% 1.1%  
356 0.2% 0.8%  
357 0% 0.7%  
358 0.1% 0.6%  
359 0.1% 0.5%  
360 0.1% 0.4%  
361 0.1% 0.2%  
362 0% 0.2%  
363 0.1% 0.1%  
364 0% 0.1%  
365 0% 0%  

Conservative Party – Liberal Democrats

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
261 0% 100%  
262 0.1% 99.9%  
263 0% 99.9%  
264 0% 99.8%  
265 0.2% 99.8%  
266 0.1% 99.6%  
267 0.2% 99.5%  
268 0% 99.4%  
269 0.1% 99.3%  
270 0.2% 99.2%  
271 0.4% 99.0%  
272 0.2% 98.6%  
273 0.4% 98%  
274 1.4% 98%  
275 0.9% 97%  
276 0.4% 96%  
277 1.4% 95%  
278 1.1% 94%  
279 1.1% 93%  
280 2% 92%  
281 2% 90%  
282 2% 88%  
283 0.9% 86%  
284 2% 85%  
285 4% 83%  
286 1.4% 80%  
287 2% 78%  
288 4% 76%  
289 2% 73%  
290 1.3% 70%  
291 3% 69%  
292 3% 66%  
293 2% 63%  
294 0.7% 62%  
295 2% 61%  
296 2% 59%  
297 0.6% 57%  
298 2% 57%  
299 4% 55%  
300 2% 51%  
301 2% 49%  
302 3% 46% Median
303 1.2% 43%  
304 3% 42%  
305 2% 39%  
306 0.8% 38%  
307 2% 37%  
308 3% 35%  
309 3% 32%  
310 1.1% 29%  
311 2% 28%  
312 2% 26%  
313 1.3% 24%  
314 1.2% 22%  
315 3% 21%  
316 1.3% 19%  
317 0.6% 17%  
318 3% 17%  
319 0.8% 13%  
320 0.5% 13%  
321 0.9% 12%  
322 1.4% 11%  
323 1.3% 10%  
324 0.7% 8%  
325 0.8% 8%  
326 0.4% 7% Majority
327 0.8% 7%  
328 1.0% 6%  
329 0.3% 5% Last Result
330 0.3% 4%  
331 0.8% 4%  
332 0.4% 3%  
333 0.7% 3%  
334 0.4% 2%  
335 0.5% 2%  
336 0.2% 1.5%  
337 0.2% 1.3%  
338 0.1% 1.0%  
339 0.2% 0.9%  
340 0.2% 0.7%  
341 0.1% 0.5%  
342 0.1% 0.4%  
343 0.1% 0.3%  
344 0.1% 0.2%  
345 0% 0.1%  
346 0% 0.1%  
347 0% 0.1%  
348 0% 0%  

Conservative Party – Plaid Cymru

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
253 0% 100%  
254 0% 99.9%  
255 0% 99.9%  
256 0% 99.9%  
257 0.1% 99.9%  
258 0.2% 99.8%  
259 0.1% 99.6%  
260 0.1% 99.5%  
261 0.1% 99.4%  
262 0.2% 99.3%  
263 0.2% 99.2%  
264 0.2% 99.0%  
265 0.3% 98.8%  
266 0.3% 98.5%  
267 0.5% 98%  
268 1.4% 98%  
269 0.5% 96%  
270 0.7% 96%  
271 1.1% 95%  
272 1.5% 94%  
273 1.1% 93%  
274 2% 92%  
275 1.4% 90%  
276 2% 89%  
277 0.8% 87%  
278 3% 86%  
279 1.3% 83%  
280 1.5% 82%  
281 3% 80%  
282 4% 77%  
283 2% 73%  
284 1.3% 71%  
285 3% 70%  
286 2% 67%  
287 2% 65%  
288 1.2% 63%  
289 2% 62%  
290 0.7% 60%  
291 2% 60%  
292 3% 58%  
293 1.2% 55%  
294 1.1% 54%  
295 2% 53%  
296 2% 50% Median
297 3% 48%  
298 3% 46%  
299 2% 42%  
300 2% 41%  
301 1.5% 38%  
302 3% 37%  
303 2% 34%  
304 1.4% 32%  
305 2% 31%  
306 1.4% 29%  
307 2% 28%  
308 3% 26%  
309 2% 23%  
310 1.0% 21%  
311 1.2% 20%  
312 1.3% 19%  
313 0.9% 17%  
314 2% 17%  
315 1.3% 14%  
316 2% 13%  
317 0.6% 11%  
318 1.1% 10%  
319 0.9% 9%  
320 0.4% 8%  
321 1.5% 8% Last Result
322 0.6% 6%  
323 0.3% 6%  
324 0.4% 6%  
325 0.5% 5%  
326 0.6% 5% Majority
327 0.2% 4%  
328 0.6% 4%  
329 0.7% 3%  
330 0.5% 3%  
331 0.5% 2%  
332 0.2% 2%  
333 0.3% 2%  
334 0.1% 1.2%  
335 0.3% 1.1%  
336 0.2% 0.8%  
337 0.1% 0.6%  
338 0.1% 0.5%  
339 0% 0.3%  
340 0.1% 0.3%  
341 0% 0.2%  
342 0% 0.2%  
343 0.1% 0.1%  
344 0% 0.1%  
345 0% 0%  

Conservative Party

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
248 0% 100%  
249 0% 99.9%  
250 0% 99.9%  
251 0% 99.9%  
252 0% 99.9%  
253 0.2% 99.8%  
254 0.1% 99.6%  
255 0.1% 99.5%  
256 0.1% 99.5%  
257 0.2% 99.4%  
258 0.2% 99.2%  
259 0.2% 99.0%  
260 0.2% 98.8%  
261 0.4% 98.6%  
262 0.5% 98%  
263 1.3% 98%  
264 0.6% 96%  
265 0.6% 96%  
266 1.0% 95%  
267 2% 94%  
268 0.5% 92%  
269 2% 92%  
270 1.4% 90%  
271 2% 89%  
272 1.0% 87%  
273 2% 86%  
274 2% 84%  
275 2% 82%  
276 3% 80%  
277 4% 77%  
278 2% 73%  
279 1.0% 71%  
280 3% 70%  
281 2% 67%  
282 2% 65%  
283 2% 64%  
284 1.3% 62%  
285 1.0% 60%  
286 2% 59%  
287 3% 58%  
288 1.5% 55%  
289 1.1% 54%  
290 2% 53%  
291 2% 50% Median
292 3% 48%  
293 3% 45%  
294 2% 42%  
295 2% 41%  
296 2% 38%  
297 3% 37%  
298 2% 34%  
299 1.4% 32%  
300 2% 30%  
301 1.3% 29%  
302 2% 27%  
303 2% 26%  
304 3% 24%  
305 1.0% 21%  
306 0.6% 20%  
307 2% 19%  
308 0.9% 17%  
309 2% 16%  
310 0.9% 14%  
311 3% 13%  
312 0.6% 11%  
313 1.0% 10%  
314 0.9% 9%  
315 0.4% 8%  
316 1.5% 8%  
317 0.5% 6% Last Result
318 0.2% 6%  
319 0.4% 6%  
320 0.5% 5%  
321 0.6% 5%  
322 0.2% 4%  
323 0.5% 4%  
324 0.6% 3%  
325 0.6% 3%  
326 0.5% 2% Majority
327 0.2% 2%  
328 0.3% 1.4%  
329 0.1% 1.1%  
330 0.3% 1.0%  
331 0.2% 0.7%  
332 0.1% 0.5%  
333 0.1% 0.4%  
334 0.1% 0.3%  
335 0.1% 0.3%  
336 0% 0.2%  
337 0% 0.1%  
338 0.1% 0.1%  
339 0% 0.1%  
340 0% 0%  

Labour Party – Liberal Democrats – Plaid Cymru

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
242 0% 100%  
243 0% 99.9%  
244 0% 99.9%  
245 0.1% 99.9%  
246 0.1% 99.8%  
247 0.2% 99.8%  
248 0.2% 99.6%  
249 0.2% 99.4%  
250 0.6% 99.2%  
251 0.1% 98.6%  
252 0.2% 98%  
253 0.3% 98%  
254 0.4% 98%  
255 0.5% 98%  
256 0.3% 97%  
257 0.5% 97%  
258 0.4% 96%  
259 0.6% 96%  
260 0.6% 95%  
261 0.8% 95%  
262 0.9% 94%  
263 0.6% 93%  
264 0.7% 92%  
265 1.0% 92%  
266 1.1% 91%  
267 2% 90%  
268 1.4% 87%  
269 1.4% 86%  
270 0.7% 85%  
271 2% 84%  
272 2% 82%  
273 0.8% 80%  
274 2% 79%  
275 0.8% 77%  
276 2% 76%  
277 1.4% 74%  
278 4% 72% Last Result
279 2% 69%  
280 1.1% 67%  
281 1.5% 66%  
282 3% 64%  
283 3% 62%  
284 4% 58%  
285 2% 55%  
286 2% 53%  
287 0.6% 51%  
288 2% 51% Median
289 3% 49%  
290 2% 46%  
291 1.0% 44%  
292 2% 43%  
293 2% 41%  
294 0.9% 40%  
295 3% 39%  
296 2% 36%  
297 0.9% 34%  
298 0.9% 33%  
299 5% 32%  
300 4% 27%  
301 0.8% 23%  
302 3% 22%  
303 2% 19%  
304 2% 17%  
305 1.5% 15%  
306 2% 13%  
307 1.3% 12%  
308 2% 10%  
309 0.8% 9%  
310 2% 8%  
311 0.4% 6%  
312 1.5% 5%  
313 0.6% 4%  
314 0.5% 3%  
315 0.4% 3%  
316 0.6% 2%  
317 0.3% 2%  
318 0.3% 2%  
319 0.3% 1.3%  
320 0.1% 1.0%  
321 0.1% 0.9%  
322 0.2% 0.8%  
323 0.1% 0.5%  
324 0.1% 0.4%  
325 0.1% 0.3%  
326 0% 0.2% Majority
327 0.1% 0.2%  
328 0% 0.1%  
329 0% 0.1%  
330 0% 0.1%  
331 0% 0.1%  
332 0% 0.1%  
333 0% 0%  

Labour Party – Liberal Democrats

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
236 0% 100%  
237 0% 99.9%  
238 0% 99.9%  
239 0% 99.9%  
240 0.1% 99.9%  
241 0.1% 99.8%  
242 0.1% 99.7%  
243 0.2% 99.6%  
244 0.2% 99.4%  
245 0.6% 99.2%  
246 0.2% 98.6%  
247 0.3% 98%  
248 0.2% 98%  
249 0.4% 98%  
250 0.5% 98%  
251 0.3% 97%  
252 0.6% 97%  
253 0.3% 96%  
254 0.6% 96%  
255 0.6% 95%  
256 0.8% 95%  
257 1.0% 94%  
258 0.6% 93%  
259 0.7% 92%  
260 1.1% 92%  
261 1.2% 91%  
262 2% 89%  
263 2% 88%  
264 1.1% 86%  
265 1.3% 85%  
266 2% 83%  
267 1.2% 82%  
268 1.5% 80%  
269 3% 79%  
270 0.7% 76%  
271 3% 76%  
272 1.4% 73%  
273 3% 72%  
274 2% 68% Last Result
275 1.2% 67%  
276 2% 66%  
277 2% 64%  
278 3% 62%  
279 3% 58%  
280 2% 55%  
281 1.3% 53%  
282 0.7% 51%  
283 2% 51% Median
284 3% 49%  
285 2% 46%  
286 1.3% 44%  
287 2% 43%  
288 2% 41%  
289 1.1% 40%  
290 3% 39%  
291 1.4% 36%  
292 1.3% 35%  
293 1.1% 33%  
294 5% 32%  
295 4% 27%  
296 0.9% 23%  
297 2% 22%  
298 3% 20%  
299 2% 17%  
300 2% 15%  
301 1.0% 13%  
302 2% 12%  
303 2% 10%  
304 0.6% 9%  
305 2% 8%  
306 0.6% 6%  
307 1.4% 5%  
308 0.7% 4%  
309 0.4% 3%  
310 0.5% 3%  
311 0.6% 2%  
312 0.3% 2%  
313 0.3% 2%  
314 0.3% 1.3%  
315 0.1% 1.0%  
316 0.1% 0.9%  
317 0.2% 0.8%  
318 0.1% 0.6%  
319 0.1% 0.5%  
320 0.1% 0.4%  
321 0.1% 0.3%  
322 0.1% 0.2%  
323 0% 0.2%  
324 0% 0.1%  
325 0% 0.1%  
326 0% 0.1% Majority
327 0% 0.1%  
328 0% 0.1%  
329 0% 0%  

Labour Party – Plaid Cymru

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
236 0% 100%  
237 0% 99.9%  
238 0% 99.9%  
239 0% 99.9%  
240 0% 99.8%  
241 0% 99.8%  
242 0.5% 99.8%  
243 0.4% 99.3%  
244 0.4% 99.0%  
245 1.1% 98.6%  
246 0.1% 98%  
247 0.2% 97%  
248 0.3% 97%  
249 2% 97%  
250 0.2% 95%  
251 0% 95%  
252 0.4% 95%  
253 3% 95%  
254 0.6% 92%  
255 0.5% 91%  
256 0.6% 91%  
257 1.3% 90%  
258 0% 89%  
259 0.1% 89%  
260 3% 89%  
261 2% 85%  
262 2% 83%  
263 0.2% 82%  
264 3% 82%  
265 0.8% 78%  
266 0.8% 77% Last Result
267 8% 77%  
268 0.8% 68%  
269 0.2% 68%  
270 0.5% 67%  
271 2% 67%  
272 1.2% 65%  
273 0.3% 63%  
274 4% 63%  
275 3% 59%  
276 2% 56%  
277 7% 54% Median
278 1.3% 47%  
279 1.2% 46%  
280 0.1% 44%  
281 0.1% 44%  
282 0.2% 44%  
283 0.9% 44%  
284 8% 43%  
285 1.2% 36%  
286 0.3% 34%  
287 0.5% 34%  
288 8% 34%  
289 2% 26%  
290 0.3% 24%  
291 6% 24%  
292 1.1% 17%  
293 0.2% 16%  
294 0.2% 16%  
295 5% 16%  
296 1.1% 11%  
297 0.2% 10%  
298 3% 9%  
299 0.5% 6%  
300 0.4% 6%  
301 2% 5%  
302 1.2% 3%  
303 0.3% 2%  
304 0.3% 2%  
305 0% 2%  
306 0.5% 2%  
307 0.2% 1.0%  
308 0.1% 0.9%  
309 0% 0.8%  
310 0.3% 0.7%  
311 0.2% 0.5%  
312 0.1% 0.3%  
313 0% 0.2%  
314 0.1% 0.2%  
315 0% 0.1%  
316 0% 0.1%  
317 0% 0.1%  
318 0% 0.1%  
319 0% 0%  

Labour Party

Graph with seats probability mass function not yet produced

Number of Seats Probability Accumulated Special Marks
230 0% 100%  
231 0% 99.9%  
232 0% 99.9%  
233 0% 99.9%  
234 0.1% 99.9%  
235 0% 99.8%  
236 0.1% 99.8%  
237 0.5% 99.7%  
238 0.3% 99.2%  
239 0.3% 98.9%  
240 1.0% 98.5%  
241 0.3% 98%  
242 0.2% 97%  
243 0.2% 97%  
244 2% 97%  
245 0.4% 95%  
246 0.1% 95%  
247 0.4% 95%  
248 2% 94%  
249 1.0% 92%  
250 0.7% 91%  
251 0.5% 91%  
252 1.1% 90%  
253 0.2% 89%  
254 0.3% 89%  
255 3% 88%  
256 2% 85%  
257 2% 83%  
258 0.5% 82%  
259 3% 81%  
260 1.0% 78%  
261 0.8% 77%  
262 7% 76% Last Result
263 2% 69%  
264 0.6% 67%  
265 0.6% 67%  
266 2% 66%  
267 1.1% 64%  
268 0.6% 63%  
269 4% 63%  
270 3% 59%  
271 2% 56%  
272 6% 54% Median
273 2% 47%  
274 1.1% 46%  
275 0.5% 45%  
276 0.4% 44%  
277 0.3% 44%  
278 0.7% 44%  
279 5% 43%  
280 3% 37%  
281 0.5% 34%  
282 0.7% 34%  
283 7% 33%  
284 2% 26%  
285 0.5% 24%  
286 5% 23%  
287 2% 18%  
288 0.3% 16%  
289 0.4% 16%  
290 4% 15%  
291 2% 11%  
292 0.6% 10%  
293 3% 9%  
294 0.7% 6%  
295 0.4% 6%  
296 2% 5%  
297 1.0% 3%  
298 0.6% 2%  
299 0.3% 2%  
300 0.1% 2%  
301 0.4% 1.5%  
302 0.2% 1.1%  
303 0.1% 0.9%  
304 0% 0.8%  
305 0.2% 0.7%  
306 0.2% 0.5%  
307 0.1% 0.3%  
308 0.1% 0.2%  
309 0.1% 0.2%  
310 0% 0.1%  
311 0% 0.1%  
312 0% 0.1%  
313 0% 0.1%  
314 0% 0%  

Technical Information

Opinion Poll

Calculations