60% of all violent felons in the prison system are repeat offenders. If 38 violent felons are randomly selected, find the probability that a. Exactly 20 of them are repeat offenders. b. At most 25 of them are repeat offenders. C. At least 24 of them are repeat offenders. d. Between 16 and 24 (including 16 and 24) of them are repeat offenders. Round all answers to 4 decimal places.

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60% of all violent felons in the prison system are repeat offenders. If 38 violent felons are randomly selected,
find the probability that
a. Exactly 20 of them are repeat offenders.
b. At most 25 of them are repeat offenders.
C. At least 24 of them are repeat offenders.
d. Between 16 and 24 (including 16 and 24) of them are repeat offenders.
Round all answers to 4 decimal places.
Transcribed Image Text:60% of all violent felons in the prison system are repeat offenders. If 38 violent felons are randomly selected, find the probability that a. Exactly 20 of them are repeat offenders. b. At most 25 of them are repeat offenders. C. At least 24 of them are repeat offenders. d. Between 16 and 24 (including 16 and 24) of them are repeat offenders. Round all answers to 4 decimal places.
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.
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