Question: 43% of trees are infested by a certain insect. What is the chance of randomly choosing 40 trees, fewer than 10 of which are infested?

43% of trees are infested by a certain insect. What is the chance of randomly choosing 40 trees, fewer than 10 of which are infested?
Use the normal approximation to the binomial with and without the continuity correction to find the following probabilities. How much difference does the continuity correction make? Exact answers are given in parentheses.

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n 40 and p 043 The mean is np 172 and the variance is n... View full answer

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