The probability mass between two standard deviations around the mean for a normal distribution is ________.
A) 66%
B) 90%
C) 75%
D) 95%

Name: The probability mass between two standard deviations around the mean for a normal distribution is ________. A) 66% B) 90% C) 75% D) 95%
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Question

Quizplus · Accepted Answer

The standard deviation covers 68% of the data in one direction from the mean in a normal distribution. Therefore, two standard deviations (in both directions) would cover approximately 95% of the data.

The Probability Mass Between Two Standard Deviations Around the Mean