Fuppose that the time required to complete a 1040R tax form is normally distributed with a mean of 100 minutes and a standard leviation of 20 minutes. What proportion of 1040R tax forms will be completed in at least 105 minutes? Round your answer to at east four decimal places.

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Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of 100 minutes and a standard
deviation of 20 minutes. What proportion of 1040R tax forms will be completed in at least 105 minutes? Round your answer to at
least four decimal places.
Transcribed Image Text:Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of 100 minutes and a standard deviation of 20 minutes. What proportion of 1040R tax forms will be completed in at least 105 minutes? Round your answer to at least four decimal places.
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