单选题 An analyst does research about kurtosis. Compared to a normal distribution, a distribution with excess kurtosis of zero is best described as:
A. less peaked.
B. equally peaked.
C. greater peaked.

【正确答案】 B
【答案解析】[解析] 正态分布的峰度是3，超峰度(excess kurtosis)=峰度(kurtosis)-3，如果超峰度为零的话，说明该分布的峰度和正态分布是一样的。