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A Certain Rare Form of Cancer Occurs in 37 Children

Question 95

Multiple Choice

A certain rare form of cancer occurs in 37 children in a million, so its probability is 0.000037. In the city of Normalville there are 74,090 children. A Poisson distribution will be used to approximate the probability that
The number of cases of the disease in Normalville children is more than 2. Find the mean of the appropriate
Poisson distribution (the mean number of cases in groups of 74,090 children) .


A) 2.7
B) 0.000037
C) 27,400
D) 274

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