Seventy five percent of youths ages 12-17 have a systolic

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Seventy five percent of youths ages 12-17 have a systolic blood pressure lower than 136mm of mercury. What is the probability that a sample of 12 youths of that age group will include:

a. exactly 4 who have a blood pressure greater than 136

b. no more than 4 who have a blood pressure greater than 136

c. at least 4 who have a blood pressure greater than 136.

Reference no: EM13604778

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