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StatisticsQ&A LibraryBased on a poll, 60% of adults believe in reincarnation. Assume that 8 adults are randomly selected, and find the indicated probability. Complete parts (a) through (d) below.a. What is the probability that exactly 7 of the selected adults believe in reincarnation?The probability that exactly 7 of the 8 adults believe in reincarnation is __.(Round to three decimal places as needed.)b. What is the probability that all of the selected adults believe in reincarnation?The probability that all of the selected adults believe in reincarnation is __.(Round to three decimal places as needed.)c. What is the probability that at least 7 of the selected adults believe in reincarnation?The probability that at least 7 of the selected adults believe in reincarnation is __. (Round to three decimal places as needed.)d. If 8 adults are randomly selected, is 7 a significantly high number who believe in reincarnation?A. No, because the probability that 7 or more of the selected adults believe in reincarnation is less than 0.05.B. Yes, because the probability that 7 or more of the selected adults believe in reincarnation is greater than 0.05.C. Yes, because the probability that 7 or more of the selected adults believe in reincarnation is less than 0.05.D. No, because the probability that 7 or more of the selected adults believe in reincarnation is greater than 0.05.Question

Asked Feb 13, 2020

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Based on a poll, 60% of adults believe in reincarnation. Assume that

8 adults are randomly selected, and find the indicated probability. Complete parts (a) through (d) below.

a. What is the probability that exactly 7 of the selected adults believe in reincarnation?

The probability that exactly 7 of the 8 adults believe in reincarnation is __.(Round to three decimal places as needed.)

b. What is the probability that all of the selected adults believe in reincarnation?

The probability that all of the selected adults believe in reincarnation is __.(Round to three decimal places as needed.)

c. What is the probability that at least 7 of the selected adults believe in reincarnation?

The probability that at least 7 of the selected adults believe in reincarnation is __. (Round to three decimal places as needed.)

d. If 8 adults are randomly selected, is 7 a significantly high number who believe in reincarnation?

A. No, because the probability that 7 or more of the selected adults believe in reincarnation is less than 0.05.

B. Yes, because the probability that 7 or more of the selected adults believe in reincarnation is greater than 0.05.

C. Yes, because the probability that 7 or more of the selected adults believe in reincarnation is less than 0.05.

D. No, because the probability that 7 or more of the selected adults believe in reincarnation is greater than 0.05.

1 Rating

Step 1

a.

Let *X* be the number of adults believe in reincarnation, hence, *X* follows binomial distribution ( 8, 0.60).

The probability that exactly 7 of the 8 adults believe in reincarnation is obtained below:

Step 2

b

The probability that all of the selected adults believe in reincarnation is obtained below:

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