UCAT Decision Making 5

Question 1

A bar chart shows monthly sales. January: 200, February: 250, March: 300, April: 280. What was the mean monthly sales over these four months?

Accepted Answer

257.5

Answer

270

Answer

260

Answer

265

Question 2

P, Q, R, S complete tasks in order. If P fails, Q takes over. If both fail, R takes over. Only S always succeeds. P has a 0.2 failure rate. What is the probability P completes the task?

Accepted Answer

0.8

Answer

0.2

Answer

0.6

Answer

1.0

Question 3

A graph shows a negative correlation between hours of exercise and resting heart rate. This means:

Accepted Answer

People who exercise more tend to have lower resting heart rates

Answer

Exercise causes lower heart rate

Answer

Heart rate determines exercise habits

Answer

All fit people have low heart rates

Question 4

A puzzle: 5 people each shake hands with every other person exactly once. How many handshakes occur?

Accepted Answer

10

Answer

20

Answer

15

Answer

25

Question 5

'All prescribed medications have side effects. Aspirin has side effects.' Does this prove aspirin is prescribed?

Accepted Answer

No — having side effects does not prove it is prescribed, as non-prescribed drugs can also have side effects

Answer

Yes — all medications with side effects are prescribed

Answer

Yes — aspirin is a medication

Answer

No — aspirin has no side effects

Question 6

A table shows: Drug A cures 80% of cases in trial 1 (20 patients) and 40% in trial 2 (100 patients). What is the overall cure rate?

Accepted Answer

50%

Answer

60%

Answer

55%

Answer

45%

A bar chart shows monthly sales.January: 200, February: 250, March: 300, April: 280.What was the mean monthly sales over these four months?

A bar chart shows monthly sales.
January: 200, February: 250, March: 300, April: 280.
What was the mean monthly sales over these four months?