SOLUTION: give a mean of 43.8 and a standard deviation of 8.7. What is the z- score of the value of 40.

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Question 617967: give a mean of 43.8 and a standard deviation of 8.7. What is the z- score of the value of 40.
Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
z-score = (value - mean) / standard deviation.
based on your given values, this is equivalent to:
z-score = (40 - 43.8) / 8.7 which would be equal to a z-score of -.4367816092