Which of the following is not a characteristic of the normal probability distribution?
A) Symmetry
B) The total area under the curve is always equal to 1.
C) 99.72% of the time the random variable assumes a value within plus or minus 1 standard deviation of its mean.
D) The mean is equal to the median, which is also equal to the mode.

Question

Quizplus · Accepted Answer

99.72% is not a characteristic of the normal probability distribution. The correct percentage is 68.26% for one standard deviation from the mean, and 95.44% for two standard deviations from the mean.

Which of the Following Is Not a Characteristic of the Normal