SOLUTION: A process is normally distributed with a mean of 200 and a variance of 25. One item is randomly selected, what is the probability of this item having a value greater than 210 ?

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Question 932570: A process is normally distributed with a mean of 200 and a variance of 25. One item is randomly selected, what is the probability of this item having a value greater than 210 ?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
mean = 200, sd = 5 (√25), z+=+blue%28x+-+200%29%2Fblue%285%29
.......
P( x > 210) = P(z > 10/5) = normalcdf(2, 100) = .0228 0r 2.28%
Using a TI calculator 0r similarly a Casio fx-115 ES plus