| Cause of Death | Prime Minister | % Correct |
|---|---|---|
| Stroke | Thomas Pelham-Holles | William Grenville | Robert Jenkinson | William Lamb | H. H. Asquith | Winston Churchill | Margaret Thatcher | 89%
|
| Pneumonia | George Canning | Clement Attlee | Harold Macmillan | James Callaghan | 42%
|
| Assassination | Spencer Percival | 32%
|
| Cancer | William Ewart Gladstone | David Lloyd George | Harold Wilson* | 32%
|
| Dementia | Margaret Thatcher | 26%
|
| Liver Cancer | Anthony Eden | 16%
|
| Complications from a Fall | John Stuart | Robert Peel | Robert Gascoyne-Cecil | 16%
|
| Heart Failure | Ramsay MacDonald | James Callaghan | 16%
|
| Bronchitis | Benjamin Disraeli | 11%
|
| Throat Cancer | Bonar Law | 11%
|
| Lung Embolism | Edward Heath | 11%
|
| Kidney Failure | James Callaghan | 11%
|
| Colon Cancer | Neville Chamberlain | 11%
|
| Bladder Stone | Robert Walpole | 11%
|
| Unknown Illness | Spencer Compton | William Cavendish | Alec Douglas-Home | 11%
|
| Heart Disease | Arthur Balfour | 5%
|
| Unknown | Augustus FitzRoy | Frederick North | William Petty | Frederick John Robinson | Charles Grey | Edward Smith-Stanley | George Hamilton-Gordon | Archibald Primrose | Henry Campbell-Bannerman | Stanley Baldwin | 5%
|
| Heart Attack | William Pitt the Elder | 5%
|
| Stomach Ulcer | William Pitt the Younger | 5%
|
| Seizure | Arthur Wellesley | 0%
|
| Influenza | Charles Watson-Wentworth | Henry Addington | 0%
|
| Myeloma | George Grenville | 0%
|
| Chill | Henry John Temple | 0%
|
| Skin Infection | Henry Pelham | 0%
|
| Emphysema | John Russell | 0%
|
| Kidney Stone | William Cavendish-Bentinck | 0%
|