Which of the following is true of a normal distribution?
A)It is a theoretical relative frequency distribution.
B)No actual set of scores is exactly normally distributed.
C)The total area under the distribution is equal to 1.0.
D)All the above.

Question

Quizplus · Accepted Answer

A normal distribution is a theoretical relative frequency distribution that has specific characteristics, such as being bell-shaped and symmetrical. No actual set of scores is exactly normally distributed, but many real-world phenomena can be approximated by a normal distribution. The total area under the normal distribution curve is always equal to 1.0, which means that the probability of any given event occurring is always between 0 and 1.0. Therefore, all the above statements are true of a normal distribution.

Which of the Following Is True of a Normal Distribution