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概率统计一小题

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opuikl_0 Posted at 2016-3-16 09:11:14 |Read mode
已知 $Y$ ~ $F_{1,5}$,Y服从F分布, $T=Z/\sqrt{U/5}$ 服从(学生)t分布, 也就是 T~$t_5$, $Y=T^2$。

求:
(a) 用t分布的表格找 P(Y>4);
(b)P(Y>c)=0.01, 求c.

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战巡 Posted at 2016-3-16 09:33:13
回复 1# opuikl_0


如此基础的题还要问啊?

$P(Y>4)=P(T<-2)+P(T>2)=2P(T>2)$,剩下你自己看着办吧,不要告诉我查表不会

(b)以此类推

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 Author| opuikl_0 Posted at 2016-3-16 21:13:11
回复 2# 战巡


谢谢

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2025-4-21 01:18 GMT+8

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