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A set 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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toporc
A z-score of 1.3 means that the data point is 1.3 standard deviations from the mean. The mean is 12. Therefore answer choice B is correct.
raphealnwobi

The data point with z-score of 1.3 is 1.3 standard deviations away from 12

Z score

The z score is used to determine by how many standard deviations the raw score is above or below the mean. It is given by:

z = (x - μ)/σ

where x is raw score, μ is mean and σ is standard deviation.

Given σ = 3, μ = 12:

The data point with z-score of 1.3 is 1.3 standard deviations away from 12

find out more on Z score at: https://brainly.com/question/25638875

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