About 1 in 1000 boys is affected by fragile X syndrome, a genetic disorder that causes
Chapter 12, Problem 98(choose chapter or problem)
About 1 in 1000 boys is affected by fragile X syndrome, a genetic disorder that causes learning difficulties. Find the probability that, in a group of 500 boys, nobody is affected by this disorder by (a) computing the exact probability and (b) using a Poisson approximation.
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