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Statistics Probability Review (TPS Chapter 5) Flashcards | StudBud
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Statistics Probability Review (TPS Chapter 5)
Statistics Probability Review (TPS Chapter 5)
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Probability
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Answers
1
Given P(Republican)=0.35, in a sample of 10 Americans, P(at least one is a Republican)?
0.0725
0.9865
0.0135
0.2275
2
Normal Distribution
77%
23%
20%
16%
3
If P(A) = 0.34 and P(A or B)=0.71 which of the following is false?
If A and B are independent, then P(B)=0.561
If A and B are mutually exclusive, then P(A|B)=0.34,
If A and B are mutually exclusive, then P(B)=0.37
If A and B are independent, then P(A and B) = 0.191
4
Find the probability of getting two red cards when drawing from 10 cards. (This is done without replacement)
.47
.7
.34
.49
5
Find the probability that a randomly selected person graduated in 1998 and went into military.
.596
0.072
.127
.303
6
The first two rolls of a fair die were both 5. What is the probability of not rolling a 5 on the next roll?
5/6
1/36
(1/6)
(1/6)2(5/6)
7
Normal distribution
112 cm
131 cm
132 cm
109 cm
8
Find P(B|R), when drawing from 10 cards (without replacement).
1/10
3/9
1/9
3/10
9
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)
No, since P(B) ≠ P(B|A)
Yes, since P(A) = P(B|A)
No, since P(B) = P(B|A)
10
Find P(neither get elected)
0.1
0.3
0.2
0
11
What is the probability that Anna and Paulina each win one of the two games?
0.3
0.58
0.18
0.12
