Suppose that you randomly selected 26 adults. Assume 18% of the population smoke. Round all answers to 2 decimal places. a) Using the Range Rule of Thumb, what is the minimum number of usual smokers we can expect to get out of 26 adults? b) Using the Range Rule of Thumb, what is the maximum number of usual smokers we can expect 26 adults? get out of c) Would it be unusual to randomly select 26 adults and get 10 smokers? No, since 10 is between the maximum and minimum usual values. Yes, since 10 is not between the maximum and minimum usual values.

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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Suppose that you randomly selected 26 adults. Assume 18% of the population smoke. Round all answers to 2
decimal places.
a) Using the Range Rule of Thumb, what is the minimum number of usual smokers we can expect to get out of
26 adults?
b) Using the Range Rule of Thumb, what is the maximum number of usual smokers we can expect to get out of
26 adults?
c) Would it be unusual to randomly select 26 adults and get 10 smokers?
No, since 10 is between the maximum and minimum usual values.
Yes, since 10 is not between the maximum and minimum usual values.
Transcribed Image Text:Suppose that you randomly selected 26 adults. Assume 18% of the population smoke. Round all answers to 2 decimal places. a) Using the Range Rule of Thumb, what is the minimum number of usual smokers we can expect to get out of 26 adults? b) Using the Range Rule of Thumb, what is the maximum number of usual smokers we can expect to get out of 26 adults? c) Would it be unusual to randomly select 26 adults and get 10 smokers? No, since 10 is between the maximum and minimum usual values. Yes, since 10 is not between the maximum and minimum usual values.
70% of all bald eagles survive their first year of life. If 40 bald eagles are randomly selected, find the
probability that
a. Exactly 28 of them survive their first year of life.
b. At most 31 of them survive their first year of life.
C. At least 29 of them survive their first year of life.
d. Between 27 and 31 (including 27 and 31) of them survive their first year of life.
Round all answers to 4 decimal places.
Transcribed Image Text:70% of all bald eagles survive their first year of life. If 40 bald eagles are randomly selected, find the probability that a. Exactly 28 of them survive their first year of life. b. At most 31 of them survive their first year of life. C. At least 29 of them survive their first year of life. d. Between 27 and 31 (including 27 and 31) of them survive their first year of life. Round all answers to 4 decimal places.
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