The shape of the normal probability density function is a symmetric bell-shaped curve centered on the:
A)variance.
B)standard deviation.
C)coefficient.
D)mean.

Question

Quizplus · Accepted Answer

The normal probability density function is centered on the mean, making option D the correct choice. The mean is also the measure of central tendency in a normal distribution. The variance and standard deviation describe the spread of the distribution and the coefficient is not relevant to the center of the curve.

The Shape of the Normal Probability Density Function Is a Symmetric