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3 years ago

12

Test scores are normally distributed with a mean of 100 and a standard deviation of 15. an individual's iq score is found to be

90. find the z-score corresponding to this value.

1 answer:

Mnenie [13.5K]3 years ago

6 0

Z score=(data value-mean)/standard deviation
z=(90-100)/15=-0.6666666667

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