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QUESTION
At Hamp;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...
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.
What proportion of the returns takes longer than 32 minutes?
A.0.0044
B.0.0082
C.0.4918
D.0.4956
