In a distribution with μ = 68 and σ = 4, Curtis scored two standard deviations above the mean. His raw score is ________.
A) 70
B) 72
C) 74
D) 76

Question

Quizplus · Accepted Answer

Curtis scored two standard deviations above the mean, which means his z-score is 2. Therefore, using the z-score formula: z = (x - μ) / σ, we can solve for his raw score:

2 = (x - 68) / 4

8 = x - 68

x = 76

Therefore, Curtis's raw score is 76.

In a Distribution with μ = 68 and σ =