AP STAT: Probability Test: Practice MC
Correct Questions And Answers 2025!!
Event A occurs with probability 0.2. Event B occurs with probability 0.8. If A and B are
disjoint, then
A. P(A and B)=0.16
B. P(A or B)=1.0
C. P(A and B)=1.0
D. P(A or B)=0.16 CORRECT ANSWERS B. P(A or B)=1.0
A stack of 4 cards contains 2 red cards and 2 black cards. I select 2 cards, one at a time
and do not replace the first card selected before selecting the second card. Consider
the two events.
A=first card selected is red
B=second card selected is red
The events A and B are
A. independent
B. disjoint
C. mutually exclusive
D. none of these CORRECT ANSWERS D. none of these
Consider a random experiment with S={a,b,c,d,e,f,g}. The event B is composed of
simple events {c,e,g}. Which of the events below is mutually exclusive with event B?
A. {a,b,d,f}
B. {a,b}
C. {b,d,f}
D. all of the above
E. none of the above CORRECT ANSWERS D. all of the above
If 2 events are complementary, what else must be true?
A. they are independent
B. they are mutually exclusive
C. they have the same simple events
D. they have different sample spaces
E. all of the above CORRECT ANSWERS B. they are mutually exclusive
Correct Questions And Answers 2025!!
Event A occurs with probability 0.2. Event B occurs with probability 0.8. If A and B are
disjoint, then
A. P(A and B)=0.16
B. P(A or B)=1.0
C. P(A and B)=1.0
D. P(A or B)=0.16 CORRECT ANSWERS B. P(A or B)=1.0
A stack of 4 cards contains 2 red cards and 2 black cards. I select 2 cards, one at a time
and do not replace the first card selected before selecting the second card. Consider
the two events.
A=first card selected is red
B=second card selected is red
The events A and B are
A. independent
B. disjoint
C. mutually exclusive
D. none of these CORRECT ANSWERS D. none of these
Consider a random experiment with S={a,b,c,d,e,f,g}. The event B is composed of
simple events {c,e,g}. Which of the events below is mutually exclusive with event B?
A. {a,b,d,f}
B. {a,b}
C. {b,d,f}
D. all of the above
E. none of the above CORRECT ANSWERS D. all of the above
If 2 events are complementary, what else must be true?
A. they are independent
B. they are mutually exclusive
C. they have the same simple events
D. they have different sample spaces
E. all of the above CORRECT ANSWERS B. they are mutually exclusive
