问题如下图:
选项:
A.
B.
C.
D.
解释:
选项d是什么知识点呢?
NO.PZ2016062402000008问题如下Whiof the following statements about the normstribution is not accurate?Kurtosis equals 3. Skewness equals 1. The entire stribution ccharacterizetwo moments, meanvariance. The normnsity function hthe following expression: f(x)=12πσ2e−12σ2(x−μ)2f{(x)}=\frac1{\sqrt{2\pi\sigma^2}}e^{-\frac1{2\sigma^2}{(x-\mu)}^2}f(x)=2πσ21e−2σ21(x−μ)2Skewness is 0, kurtosis 3, the entire stribution is scribeμ anσ, anthe p.f. is correct.第几部分第几章节呢。?
NO.PZ2016062402000008 No.PZ2016062402000008 (选择题)
mean应该是属于一阶?出题不严谨?