题目
Which of the following is characteristic of the normal distribution?
选项
A.Asymmetry
B.Kurtosis of 3
C.Definitive limits or boundaries
答案
B
解析
： B is correct. The normal distribution has a skewness of 0, a kurtosis of 3, and a mean, median and mode that are all equal. ： B正确。 正态分布的偏度为0，峰度为3，均值、中值和众数均相等。