SOLUTION: For a normally distributed population with a mean =90 and a standard deviation =7, if Jenny has a raw score of 76, what is the z-score?

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Question 409362: For a normally distributed population with a mean =90 and a standard deviation =7, if Jenny has a raw score of 76, what is the z-score?
Answer by ewatrrr(10682) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

For a normally distributed population with a mean =90 and a standard deviation =7,

if Jenny has a raw score of 76, what is the z-score?

*Note: z+=+blue%28x+-+mu%29%2Fblue%28sigma%29

    z = (76-90)/7 = -14/7 = -2  (2 standard deviations 'below' the mean)