Asked by Beth

The results of a certain medical test are normally distributed with a mean of 128 and a standard deviation of 19. (A score above 140 is considered unhealthy.) Use the given table to find the percentage of people with readings below 137.

8 years ago

Answered by PsyDAG

Z = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability in the larger portion related to the Z score.

8 years ago

Answered by Chad

0.7

7 years ago

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