SOLUTION: the ages of a group of 50 women are approximately normally distributed with a mean of 48 years and standard deviation of 6 years. One woman is randomly selected from a group, and h

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Question 932403: the ages of a group of 50 women are approximately normally distributed with a mean of 48 years and standard deviation of 6 years. One woman is randomly selected from a group, and her age is observed. Find the probability that her age will fall between 56 and 61 years.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
n = 50 : mean of 48 years and standard deviation of 6 years
z+=blue+%28x+-+48%29%2Fblue%286%2Fsqrt%2850%29%29+=blue+%28x+-+48%29%2Fblue%28.85%29++
.......
P( 56 < x < 61) = P( 8/.85 < z < 13/.85) = normalcdf(9.4,15.3 ) = 2.7x10^(-27)