SOLUTION: The scores on a mathematics exam have a mean of 65 and a standard deviation of 5. Find the x-value that corresponds to the z-score -1.28
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Question 1191808: The scores on a mathematics exam have a mean of 65 and a standard deviation of 5. Find the x-value that corresponds to the z-score -1.28
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
z=(x-mean)/sd
-1.28=(x-65)/5
-6.4=x-65
x=58.6
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