Analysts may adjust a historical relative frequency distribution to consider their judgment about the changing relationships, the probability is a(n):
A. empirical probability.
B. priori probability.
C. subjective probability.
[答案及解释]Practice 2.23
A正确.超额峰度大于0,属于尖峰,更多数据集中于中央.
三,概率的乘法法则(Multiplication Rule for Pr