SOLUTION: A set of data has normail distribution with a mean of 5.1 and a standard devation of 0.9. Find the percent of data between 4.2 and 5.1

Question 450026: A set of data has normail distribution with a mean of 5.1 and a standard devation of 0.9. Find the percent of data between 4.2 and 5.1
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A set of data has normail distribution with a mean of 5.1 and a standard devation of 0.9. Find the percent of data between 4.2 and 5.1
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z(5.1) = 0
z(4.2) = (4.2-5.1)/0.9 = -0.9/0.9 = -1
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P(4.2 < x < 5.1) = P(-1< z < 0) = 0.3413
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Cheers,
Stan H.
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