Which of the following statements is/are true regarding the normal distribution?
A) It is always the appropriate distribution in simulation modeling.
B) It does not permit negative values.
C) There is a 95% chance that values will be within ± 2 standard deviations of the mean.
D) All of these statements are true.

Question

Quizplus · Accepted Answer

The normal distribution is not always the appropriate distribution in simulation modeling, as other distributions may be better suited for certain situations. The normal distribution permits negative values, so statement B is false. Statement C is true, as approximately 95% of all observations will fall within ± 2 standard deviations of the mean in a normal distribution. Therefore, the correct choice is C.

Which of the Following Statements Is/are True Regarding the Normal