Re: [問題] 機率一題
※ 引述《WiseWater (Guest)》之銘言:
: X~N(0,1)
: P(Y=sqrt(3))=P(Y=-sqrt(3))=1/6, P(Y=0)=2/3,
: Show that E(X^r)=E(Y^r).
: Thanks.
Romano and Siegel point out :
For any finite n there exists a discrete,and hence
nonnormal , random variable whose first n moments
are equal to those of X.
這兩位統計學家 ,說了連續跟離散分配r階動差的關係
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