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Decorate a Store Sells Ornaments for Christmas Trees

Question 65

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Decorate A store sells ornaments for Christmas trees. The prices of the ornaments are roughly normally distributed with a mean of $7.65 and a standard deviation of $1.45. a. What is the probability that a randomly selected ornament will cost more than $10?
b. If eight ornaments are randomly selected, what is the probability that exactly 3 of them cost over $10?

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