SOLUTION: A set of data items is normally distributed with a mean of 80 and a standard deviation of 4. Convert 89 to a z-score.

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Question 443690: A set of data items is normally distributed with a mean of 80 and a standard deviation of 4. Convert 89 to a z-score.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi



mean of 80 and a standard deviation of 4

*Note: z+=+blue%28x+-+mu%29%2Fblue%28sigma%29  | x = 89

   z = (89-80)/4 = 9/4 = 2.25