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cluponka [151]
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.
Mathematics
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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