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47​% of U.S. adults have very little confidence in newspapers. You randomly select 10 U.S. adults....

47​% of U.S. adults have very little confidence in newspapers. You randomly select 10 U.S. adults. Find the probability that the number of U.S. adults who have very little confidence in newspapers is ​ (a) exactly​ five, (b) at least​ six, and​ (c) less than four.

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Answer #1

The the number of US adults who have very little confidence in newspapers out of 10 has follows Binomial distribution with
The PMF of is .

a) The probability (exactly​ five),

b) The probability (at least​ six),

c) The probability (less than four),

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