[商管] [統計]-機率問題

[wo0228 (天碎之牙)]

(1)let the r.v X have a uniform dis. in the union of intervals (0,a)
and (a+2,b) .let F be the cdf of X .assume that F(4)=0.2 and F(a+1)=0.25
find a and b


(2)f(x,y)=4xy 0<=x,y<=1
find the conditional density of X give the event X-Y=0 by using the
transformation U=X and V=Y-X
這題解答上是求出 P(V=v|U=0) 他題目上的條件機率是這意思嗎!?

謝謝!!各位高手不厭其煩的替我解答!!
祝大家新年快樂!!

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→ redwine:(1)a=5,b=22 (2) u,v反了吧?
推 ayabf:咦 我算a＝6,b=23
推 eternalism:我跟一樓一樣
→ redwine:我也想跟學妹跨年
→ wo0228:可以說一下你們第一題如何求的嗎!?
推 ayabf:我好像搞錯意思了0.0
→ redwine:當國中幾何~高先求出來 面積=機率
→ wo0228:對不起~我還是卡住了~可以給我點算式嗎!?謝謝!