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How much money does a typical family of four spend at a McDonald’s restaurant per visit? The amount is a normally distributed random variable with a mean of $16.40 and a standard deviation of

How much money does a typical family of four spend at a McDonald’s restaurant per visit? The amount is a normally distributed random variable with a mean of $16.40 and a standard deviation of $2.75. a. Find the probability that a family of four spends less than $10. b. What is the amount below which only 10% of families of four spend at McDonald’s?

Jun 22 2020 View more View Less

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