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a sample of 44 books has a mean cost of $53.20 and a standard deviation of...

a sample of 44 books has a mean cost of $53.20 and a standard deviation of 3.01. Use this information and the special cases of chebyshev's rule to complete the statements below.

At least 33 of the 44 books cost between _____ and ______.

At least _______ of the 44 books cost between $44.17 and $62.23.

Math   Statistics-And-Probability   
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