Requires @RISK) Compare the two similar probability distributions, triangular and Pert, each with the parameters min=50, most likely=85, and max=100. Which of the following is true?

a. The interquartile range, i.e., the third quartile minus the first quartile, is larger for the Pert distribution than for the triangular distribution.

b. The probability that a random number from the Pert distribution is at least one standard deviation above the mean is smaller than the similar probability for the triangular distribution.

c. The probability that a random number from the Pert distribution is between 70 and 90 is smaller than the similar probability for the triangular distribution.

d. None of these choices are true