Suppose that all the values in a data set are converted to z scores. Which of the statements below is true?
The mean and standard deviation of the z scores will be the same as the mean and standard deviation of the original data values.
The mean of the z scores will be zero, and the standard deviation of the z scores will be the same as the standard deviation of the original data values.
The mean and the standard deviation of the z scores will both be 0.
The mean of the z scores will be 0, and the standard deviation of the z scores will be 1.
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