Asked by Bernadine Franklin on Apr 28, 2024
Verified
How is the z score calculated?
A) Subtract the mean from the raw score and divide this difference by the standard deviation.
B) Subtract the mean from the raw score and divide this difference by the variance.
C) Subtract the raw score from the mean and divide this difference by the standard deviation.
D) Subtract the raw score from the mean and divide this difference by the variance.
Raw Score
The original, unmodified score obtained in an assessment or measurement.
Z Score
A numeric indicator that represents how a specific value compares to the average of a data set, expressed in units of standard deviations away from the mean.
- Understand the concept and calculation of z scores.
Verified Answer
ZK
Zybrea KnightMay 03, 2024
Final Answer :
A
Explanation :
The formula for calculating the z score involves subtracting the mean from the raw score to obtain the distance from the mean, and then dividing this distance by the standard deviation in order to express the distance in terms of standard units. Therefore, choice A is the correct formula for calculating the z score.
Learning Objectives
- Understand the concept and calculation of z scores.