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AP Statistics - Ch 5 Probability Flashcards | StudBud

Explore/AP Statistics - Ch 5 Probability

AP Statistics - Ch 5 Probability

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A #math #statistics #APStatistics #APStats chapter test on probability

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Questions 12

Answers

1
pg 337 #T5.8 (NOT SAME ANSWERS AS BOOK)
If A and B are not mutually exclusive, they must be indep.
Mutually exclusive events are always independent
Independent events are always mutually exclusive
Independent events cannot be mutually exclusive
2
P (B | A) means
the probability of A or B happening
the probability of both A and B happening
the probability of B given A
the probability of A given B
3
Are the events "being born in May" and "being male" independent?
Yes b/c probabilities not related.
Yes b/c if you know one then you know the other.
No b/c probabilities are related.
No b/c knowing one doesn't affect the other.
4
pg 336 #T 5.6
0.285
0.365
0.80
0.281
5
Textbook pg 336 # T5.2
book (C)
book (B)
book (D)
book (E)
6
pg 336 # T5.5
0.227
0.475
0.450
0.255
7
pg 337 # T5.7
0.314
0.727
0.281
0.285
8
page 336 # T5.3
13%
20%
45%
7%
9
Are the events "Gould student" and "does snow activities" independent?
No b/c knowing one makes other more likely.
No b/c when you know one, you still don't know the other.
Yes b/c most Gould students are do snow activities.
Yes b/c knowing one helps you guess the other
10
Page 336 Question T5.1
Unlikely to get more than 5000 heads
After 15 tails, you probably will get heads
Fraction of heads close to 1/2
Chance of heads on toss 100 depends on previous tosses
11
page 336 #T5.4
10
7
8
9
12
P(A) is 1/3. P(B) is 1/4. Make a tree diagram. Which are correct?
Probability of only one of A or B is 5/12
P(not B) = 2/3
P(not A and not B) = 6/12
P(A and B) = 7/12