8. The probability of any plant surviving in Kerry's garden is 0.9. Suppose that she plants...
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8. The probability of any plant surviving in Kerry's garden is 0.9. Suppose that she plants 20 new plants this year. a. Let X be the number of plants surviving (out of 20 new plants). Find the mean and the standard deviation of X. b. What is the probability that at least 18 of them survive? col 8. The probability of any plant surviving in Kerry's garden is 0.9. Suppose that she plants 20 new plants this year. a. Let X be the number of plants surviving (out of 20 new plants). Find the mean and the standard deviation of X. b. What is the probability that at least 18 of them survive? col
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