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The average price of a college math textbook is $166 and the standard deviation is $24....

The average price of a college math textbook is $166 and the standard deviation is $24. Suppose that 7 textbooks are randomly chosen. Round all answers to 4 decimal places where possible.

  1. For the group of 7, find the probability that the average price is between $171 and $184.

  3. Find the first quartile for the average textbook price for this sample size. $ (round to the nearest cent)
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