The standard deviation for the number of people in a sample, n for a population with a given known proportion is sqrt(n(p)(1-p)) = sqrt(600(.02)(.98)) = 3.43 ( the mean is np = 600(.02) = 12)
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Aisha A.
asked • 01/09/23About 2% of the population has a particular genetic mutation. 600 people are randomly selected. Find the standard deviation for the number of people with the genetic mutation in such groups of 600.
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