(Answered) Assume sps professors have the average life normally

Statistics

Assume sps professors have the average life normally distributed of 82 years, with population standard deviation of 5 years.

a. Determine the percent of sps professors will make it past the age of 70?
b. Determine percent of sps professors will not live more than 80 years?
c. Compute the 95th percentile
d. what proportion of sps professors will live between 85 and 90 years?

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