23. The "cumulative relative frequency distribution" is a running total of the proportions of observations within a given array of data points: a. True b. False 24. Which of the following statements is are correct regarding the concept of the "Hurwicz criterion?" a. it can be viewed as a compromise between an optimistic and pessimistic decision b. it consists of the coefficient of optimism and its complement c. it is a more realistic method of making predictions in the absence of perfect information d. all of these e none of these