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Neuroblastoma, a rare form of cancer, occurs in 11 children in a million, so its probability...

Neuroblastoma, a rare form of cancer, occurs in 11 children in a million, so its probability is 0.000011. Four cases of neuroblastoma occurred in Oak Park, Illinois, which had 12 429 children. Assuming that neuroblastoma occurs as usual, find the mean number of cases in groups of 12 429 children. Using the mean from part a), find the probability that the number of neuroblastoma cases in a group of 12 429 children is 0 or 1. ( Think Poisson ).

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