In the normal distribution, the probability of an observation being within plus or minus one standard deviation of the mean is about ________ percent.
A) 50
B) 67
C) 90
D) 95
E) 99

Name: In the normal distribution, the probability of an observation being within plus or minus one standard deviation of the mean is about ________ percent. A) 50 B) 67 C) 90 D) 95 E) 99
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Question

Quizplus · Accepted Answer

In a normal distribution, approximately 68% (or about 67%) of the data falls within one standard deviation of the mean.

In the Normal Distribution, the Probability of an Observation Being