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AP Statistics Probability Review (Chapter 5) Flashcards | StudBud
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AP Statistics Probability Review (Chapter 5)
AP Statistics Probability Review (Chapter 5)
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Probability
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Questions
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Answers
1
If P(A) = 0.34 and P(A or B)=0.71 which of the following is false?
P(A|B)=0.34, if A and B are mutually exclusive
P(A and B) = 0.191 if A and B are independent
P(B)=0.37 if A and B are mutually exclusive
P(B)=0.561 if A and B are independent
2
The first two rolls were both 5. What is the probability of not rolling a 5 on the next roll?
(1/6)
(1/6)2(5/6)
5/6
1/36
3
Find the probability of getting two red cards. (This is done without replacement)
.34
.46
.7
.49
4
Find P(neither get elected)
0.2
0
0.3
0.1
5
Given P(Republican)=0.35, in a sample of 10 Americans, P(least one is a Republican)?
0.0135
0.0725
0.2275
0.9865
6
Find P(B|R) (This is done without replacement)
3/9
3/10
1/10
1/9
7
Given that P(A)=0.6, P(B)= 0.3, and P(B|A)=0.5, are the events A and B independent?
No, since P(A) ≠ P(B|A)
Yes, since P(A) = P(B|A)
No, since P(B) ≠ P(B|A)
No, since P(B) = P(B|A)
8
What is the probability that they each win one of the two games?
0.12
0.18
0.58
0.3
9
Find the probability that a randomly selected person graduated in 1998 and went into military.
.127
.596
.303
0.072
