SOLUTION: The amount of snowfall falling in a certain mountain range is normally distributed with a mean of 101 inches, and a standard deviation of 10 inches. What is the probability that th

Algebra ->  Probability-and-statistics -> SOLUTION: The amount of snowfall falling in a certain mountain range is normally distributed with a mean of 101 inches, and a standard deviation of 10 inches. What is the probability that th      Log On


   

Question 1049794: The amount of snowfall falling in a certain mountain range is normally distributed with a mean of 101 inches, and a standard deviation of 10 inches. What is the probability that the mean annual snowfall during 16 randomly picked years will exceed 103.8 inches?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
P(z > 103.8) = P(z+%3C=+%28blue+%28103.8+-+101%29%29%2Fblue%2810%2Fsqrt%2816%29%29)
P(z <= 2.8/2.5) = P(z <= 1.12) = .8686 0r 86.86%