Aset of data has a mean of 12 and a standard deviation of 3. a data point of the set has a z-score of 1.3. what does a z-score of 1.3 mean? a. the data point is 1.3 standard deviations away from 3. b. the data point is 1.3 standard deviations away from 12. c. the data point is 3 standard deviations away from 1.3. d. the data point is 3 standard deviations away from 12.

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