In her normally distributed achievement test scores, Lee's mean score is a 64 with a standard deviation of 6. What score would a student with a z score of 2 have on the test?
A) 58
B) 70
C) 76
D) 80

Question

Quizplus · Accepted Answer

To find the score that corresponds to a z score of 2, we use the formula: 
z = (x - μ) / σ

Substituting the given values, we get: 
2 = (x - 64) / 6

Solving for x: 
x - 64 = 12 
x = 76

Therefore, a student with a z score of 2 would have a score of 76 on the test.

In Her Normally Distributed Achievement Test Scores, Lee's Mean Score