SOLUTION: A manufacturer knows that their items have a normally distributed length, with a mean of 19.5 inches, and standard deviation of 4.7 inches. If one item is chosen at random, what

Algebra ->  Test -> SOLUTION: A manufacturer knows that their items have a normally distributed length, with a mean of 19.5 inches, and standard deviation of 4.7 inches. If one item is chosen at random, what      Log On


   

Question 1179296: A manufacturer knows that their items have a normally distributed length, with a mean of 19.5 inches, and standard deviation of 4.7 inches.
If one item is chosen at random, what is the probability that it is less than 28.1 inches long?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi
Distribution: normal with µ = 19.5 and σ = 4.7
Using TI or similarly an inexpensive calculator like an Casio fx-115 ES plus
Chose 1
P( x < 28.1) = normalcdf(-9999,28.1,19.5,4.7) = .9664
Wish You the Best in your Studies.