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Suppose that the duration of a particular type of criminal trial is known to be normally distributed with a mean of21daysand a standard deviation of8days.

Suppose that the duration of a particular type of criminal trial is known to be normally distributed with a mean of21daysand a standard deviation of8days. Give the distribution ofX. X~ 21,8

If one of the trials is randomly chosen, find the probability that it lasted more than27days.(Round your answer to four decimal places.) = is 0.2266

so.... the probability statement is P(X>27)

then

66% of all trials of this type are completed within how many days? (Round your answer to two decimal places.)

what is this answer:

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