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The life span of a box turtle are normally distributed with a mean of 180 years...

The life span of a box turtle are normally distributed with a mean of 180 years and a standard deviation of 40 years.

a) What is the probability that a turtle will live for under 50 years?

b) If there are 750 of these turtles in captivity, how many will live

between 100 and 250 years?

math   Statistics-And-Probability   
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