When all the values on a variable have been converted into z-scores, the mean
A) becomes 0
B) becomes 1
C) becomes 100
D) is the same as before the values were converted

Question

Quizplus · Accepted Answer

Converting values into z-scores involves subtracting the mean of the variable from each value, and then dividing by the standard deviation of the variable. This transformation results in a new variable with a mean of 0 and a standard deviation of 1. Therefore, the answer is A, as the mean becomes 0 after conversion.

When All the Values on a Variable Have Been Converted