Question: At H&R Blockhead, the time (random variable X) it takes to prepare a 1040EZ tax return is distributed normally, with a mean of 20 minutes

At H&R Blockhead, the time (random variable X) it takes to prepare a 1040EZ tax return is distributed normally, with a mean of 20 minutes and a standard deviation of 5 minutes.

25% of the returns take longer than _______________ minutes to prepare.

A.23.35

B.24.32

C.25.64

D.36.79

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