The empirical rule can be used to estimate some proportions ________.
A) when data has any shape.
B) when it is skewed to the left.
C) when it is skewed to the right.
D) when it is approximately symmetric and bell-shaped.

Question

Quizplus · Accepted Answer

The empirical rule is applicable only for approximately symmetric and bell-shaped distributions, also known as normal distributions. Therefore, the best choice is option D. It cannot be used for skewed distributions or any other shape of distribution.

The Empirical Rule Can Be Used to Estimate Some Proportions