NO.PZ2023100703000023
问题如下:
Consider the following QQ plot:
Empirical Quantiles
Which is the most likely true statement about the QQ plot?
选项:
A.The empirical distribution is actually parametric.
B.The empirical distribution has positive skew.
C.The empirical distribution has leptokurtosis (excess kurtosis>3)
D.If we perform a linear transformation of location and scale, the distribution is approximately normal.
解释:
Heavy tails: the steeper slope - i.e., greater than 1.0 - at the tails indicates the tails are heavier than the reference distribution麻烦画一个qq图标记下肥瘦尾、尖峰、低峰表现