問題詳情
294. The probability that the economy will improve, remain stable, or decline is:

Prices for Stock X and Stock Y will change as follows:

Determine which of the following statements about the percentage price changes for Stock X and Stock Y is true.
(A) The percentage change for Stock X has a larger variance and a larger mean.
(B) The percentage change for Stock X has a larger variance and the means are equal.
(C) The percentage change for Stock X has a larger variance and a smaller mean.
(D) The variances are equal and the percentage change for Stock X has a larger mean.
(E) Both the variances and the means are equal.
參考答案
答案:B
統計:A:0,B:0,C:0,D:1,E:0
難度:計算中