What two statistics are needed to calculate a standard score?
A)range and midst
B)mean and standard deviation
C)range and mode
D)standard deviation and z-score

Question

Quizplus · Accepted Answer

Standard scores are calculated by subtracting the mean from the raw score and dividing it by the standard deviation. Therefore, the necessary statistics to calculate a standard score are the mean and standard deviation. Option A mentions range and midst, which are not relevant in determining standard scores. Option C mentions range and mode, which are also not relevant. Option D mentions standard deviation and z-score, but z-score is actually another term for a standard score, so this answer choice is redundant.

What Two Statistics Are Needed to Calculate a Standard Score