Question

which of the following probability distribution types has a mean, median, and mode that are all equal?
constant
symmetric
positively skewed
negatively skewed

Explanation:

In a symmetric probability - distribution, the data is evenly distributed around the center. The mean is the average value, the median is the middle value, and the mode is the most frequently occurring value. Due to the symmetry, these three measures of central tendency coincide. In a constant distribution, there is only one value so mean = median = mode, but it is a special case of symmetric distribution. Positively and negatively skewed distributions have different relationships between mean, median, and mode.

Answer:

A. constant, B. symmetric