If the probability of getting a z-score between the mean and +1 standard deviation is 0.3413,what is the probability of getting a z-score lower than -1 standard deviation?
A)0.3413
B)0.1587
C)0.6587
D)0.8413

Question

Quizplus · Accepted Answer

Since the area between the mean and +1 standard deviation is 0.3413, the area to the left of the mean (which is the same as the area to the left of F1F1F1S1F1F1F101 standard deviation) is 0.5-0.3413=0.1587. Therefore, the probability of getting a z-score lower than F1F1F1S1F1F1F101 standard deviation is 0.1587.

If the Probability of Getting a Z-Score Between the Mean