If the mean of a distribution is 7 and the standard deviation is 2,what is the z score that is equivalent to a raw score of 3?
A) 2
B) -2
C) 3
D) 6

Question

Quizplus · Accepted Answer

To find the z-score, we use the formula:

z = (X - μ) / σ

where X is the raw score, μ is the mean, and σ is the standard deviation.

Plugging in the values given, we get:

z = (3 - 7) / 2
z = -4 / 2
z = -2

Therefore, the z score equivalent to a raw score of 3 is -2. Choice B is the correct answer.

If the Mean of a Distribution Is 7 and the Standard