UCAT Decision Making 4

Question 1

A Venn diagram shows: Group X only = 8, Group Y only = 12, Both = 5, Neither = 3. How many people are in the survey?

Accepted Answer

28

Answer

25

Answer

23

Answer

30

Question 2

'Either the project finishes on time or we lose the contract. The project finished on time.' What follows?

Accepted Answer

The contract is not necessarily saved — other conditions may apply

Answer

We definitely keep the contract

Answer

We lost the contract

Answer

The project will be profitable

Question 3

If P → Q and Q → R, and P is true, what is true?

Accepted Answer

R is true

Answer

R may be true

Answer

Q is false

Answer

P implies not-R

Question 4

A car depreciates by 20% per year. It costs £25,000 new. What is it worth after 2 years?

Accepted Answer

£16,000

Answer

£15,000

Answer

£17,500

Answer

£18,000

Question 5

A scheduling puzzle: A must happen before B. C must happen before A. D must happen after B. What is a valid order?

Accepted Answer

C, A, B, D

Answer

A, C, B, D

Answer

B, A, C, D

Answer

D, B, A, C

Question 6

In a group of 100 patients, 60 were given a treatment. Of those, 45 improved. Of the 40 untreated, 20 improved. What is the relative risk of improvement with treatment?

Accepted Answer

1.5

Answer

0.75

Answer

2.25

Answer

1.125

A Venn diagram shows: Group X only = 8, Group Y only = 12, Both = 5, Neither = 3.How many people are in the survey?

A Venn diagram shows: Group X only = 8, Group Y only = 12, Both = 5, Neither = 3.
How many people are in the survey?