2) A baseball pitcher threw 3848 pitches during part of a recent season. Of these, 1372 were thrown with no strikes on the batter, 961 were thrown with one strike, and 1515 were thrown with two strikes. Find the following: a) P(A baseball pitch is thrown with no strikes) = b) P(A baseball pitch thrown with fewer than two strikes)=D_

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2) A baseball pitcher threw 3848 pitches during part of a recent season. Of these, 1372 were thrown
with no strikes on the batter, 961 were thrown with one strike, and 1515 were thrown with two
strikes.
Find the following:
a) P(A baseball pitch is thrown with no strikes) =
b) P(A baseball pitch thrown with fewer than two strikes)=.
3) In a survey 46,281 women were asked how many children they had. The results were as follows.
Number of children
3
4
5
8 or more
Number of women
12,574
7,493
11.282
7,124
3,778
1,811
924
523
772
a) P(sampled woman has exactly 4 children)?
b) P(Sampled woman has more than 3 children)?
c) Assume this is a simple random sample of U.S. women. Use the Empirical Method to estimate the
probability that a woman has more than seven children.
d) Using a cutoff of 0.05, is it unusual for a woman in the survey to have no children?
(Hint: Find the probability the woman has no children.)
Transcribed Image Text:2) A baseball pitcher threw 3848 pitches during part of a recent season. Of these, 1372 were thrown with no strikes on the batter, 961 were thrown with one strike, and 1515 were thrown with two strikes. Find the following: a) P(A baseball pitch is thrown with no strikes) = b) P(A baseball pitch thrown with fewer than two strikes)=. 3) In a survey 46,281 women were asked how many children they had. The results were as follows. Number of children 3 4 5 8 or more Number of women 12,574 7,493 11.282 7,124 3,778 1,811 924 523 772 a) P(sampled woman has exactly 4 children)? b) P(Sampled woman has more than 3 children)? c) Assume this is a simple random sample of U.S. women. Use the Empirical Method to estimate the probability that a woman has more than seven children. d) Using a cutoff of 0.05, is it unusual for a woman in the survey to have no children? (Hint: Find the probability the woman has no children.)
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