There are 4 green balls, 3 purple balls, 2 orange balls and 1 white ball in a box.

d.3/ 50

2.A and B are two events. Let P(A)=0.5 ,  P(B)=0.25 , and P(A and B)=0.15. Which statement is true?

a. ABand P(B|A)=P(A).

b. AB

c. A and B are not independent events because 

d. AB and  P(B|A)=P(A)

3.A basketball player that shoots 80% from the free throw line attempts two free throws. The notation for conditional probability is P(made 2nd attempt|made 1st attempt).

Which notation is the probability of the two events being independent?

a.

c.

P(made 1st attempt)

4.A random number generator that returns an integer is run twice. The notation for conditional probability is P(even on 2nd run|odd on 1st run) .Which notation is the probability of the two events being not independent?

a.

P(even on 2nd run)

c.

d.

5.A random number generator that returns an integer is run twice. Let Event A be an odd number on the first run and Event B be an even number on the second run.

Which statement about the conditional probability is true?

a. BAP(A) when two events are not independent.

b. BA when two events are not independent.

c. BA 

d. BAP(A) when two events are independent.