Question 1

Independent events: P(A|B) = ?

Options :

A : P(A)

B : P(B)

C : 0

D : P(A) + P(B)

Answer: A

Question 2

A commuter has a .4 probability of taking the bus to work, a .4 probability of driving a car, and a .2probability of cycling. The probability of being late is .15 when taking the bus, .05 when driving a car, and .1when cycling.What is the probability of taking the bus and being on time, or driving a car and being on time?

Options :

A : .76

B : .32

C : .34

D : .72

Answer: D

Question 3

The table shows the results of a survey of favorite movie genres.What is the probability of selecting an action and then a comedy respondent if the selection is replaced?

Options :

A : 10.5%

B : 12.5%

C : 68%

D : 75%

Answer: A

Question 4

Sample mean = 40, SD = 8, n = 16. Standard error = ?

Options :

A : 2

B : 8

C : 0.5

D : 4

Answer: A

Question 5

Poisson used for:

Options :

A : Rare events per interval

B : Success/failure trials

C : Continuous data

D : Categorical data

Answer: A

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