Answer to Question #344865 in Statistics and Probability for Shani

Question

A score with a value less than or equal to the mean will have a z-score that is less than or equal to zero. 

Answer 1

It is true because z-score describes the position of a raw score in terms of its distance from the mean, when measured in standard deviation units. The z-score is positive if the value lies above the mean, and negative if it lies below the mean.