Which of the following is NOT true of the normal probability distribution?
A)the graph of the curve is the shape of a bell curve
B)the total area under the curve is always equal to 1.
C)approximately 99.7% of the time the random variable assumes a value within plus or minus one standard deviation of its mean
D)the mean is equal to the median, which is also equal to the mode.
E)none of the above; all are characteristics

Question

Quizplus · Accepted Answer

Option C is incorrect because approximately 99.7% of the values lie within plus or minus three standard deviations of the mean, not one standard deviation.

Which of the Following Is NOT True of the Normal