Which of the following is not a characteristic of the normal probability distribution?
a. It is a discrete probability distribution.
b. The total area under the curve is always equal to 1
c. 68% of the area under the normal curve is within one standard deviation of the mean.
d. A negative z value is to the left of the mean.
e. The mean is equal to the median, which is also equal to the mode.
The solution answers the question below. The expert examines the normal probability distribution for characteristics.