Which of the Following Is Not a Characteristic of the Normal

Multiple Choice

Which of the following is not a characteristic of the normal probability distribution?

A) The graph of the curve is the shape of a rectangle
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 three standard deviations of its mean
D) The mean is equal to the median, which is also equal to the mode.