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Let X represent the full height of a certain species of tree. Assume that X has a normal probability distribution with a mean of 158.7

Let X represent the full height of a certain species of tree. Assume that X has a normal probability distribution with a mean of 158.7 ft and a standard deviation of 63 ft. Find the probability that the height of a randomly selected tree is between 133.5 ft and 309.9 ft. P(133.5

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