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Normal distribution with a mean time

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You are awaiting your tax return and the time at which the mailman delivers the mail to your home follows a normal distribution with a mean time of 840 minutes into the day (2:00 pm) and a standard deviation of 15 minutes. There is a 3% chance the mail will arrive in approximately how many minutes into the day or later? Hint: (this problem refers to the top 3%(right tail) end of the curve.)

Reference no: EM132116723

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