SOLUTION: The score on a mathematics exam have a mean of 70 and a standard deviation of 8. Find the x value that corresponds to the z score -2.575.

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Question 1157083: The score on a mathematics exam have a mean of 70 and a standard deviation of 8. Find the x value that corresponds to the z score -2.575.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!

z=(x-mean)/sd,
-2.576=(x-mean)/7
x-mean=-18.025
x=70-18.025=51.975