Phyllis used a triangular distribution of T(10, 15, 20) to represent her daily commute time (minutes). Which statement is incorrect?
A)The distribution is right-skewed.
B)The mode of the distribution is at the mean.
C)The mean of the distribution is 15.
D)The midrange of the distribution is 15.

Question

Quizplus · Accepted Answer

The triangular distribution T(10, 15, 20) is symmetric, not right-skewed, because the mode (15) is exactly in the middle of the lower limit (10) and the upper limit (20).

Phyllis Used a Triangular Distribution of T(10, 15, 20) to Represent