97 9.) A normal distribution of scores has a standard deviation of 10. Find the Z-scores
corresponding to each of the following values:
a) A score of 60, where the mean score of the sample data values is 40.
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b) A score that is 30 points below the mean.
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A score of 80, where the mean score of the sample data values is 30.
TA
d) A score of 20, where the mean score of the sample data values is 50.