已知 X= -2 5 7 8P(x)=0.59,0.15,0.25,0.01Y=5X 请问Y的概率分布怎么算····

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已知 X= -2 5 7 8P(x)=0.59,0.15,0.25,0.01Y=5X 请问Y的概率分布怎么算····

已知 X= -2 5 7 8P(x)=0.59,0.15,0.25,0.01Y=5X 请问Y的概率分布怎么算····
已知 X= -2 5 7 8
P(x)=0.59,0.15,0.25,0.01
Y=5X 请问Y的概率分布怎么算····

已知 X= -2 5 7 8P(x)=0.59,0.15,0.25,0.01Y=5X 请问Y的概率分布怎么算····
X= -2 5 7 8
Y= -10 25 49 64
P 0.59 0.15 0.25 0.01
与x的概率分布一样,只是把数值改成5倍,概率不变

Y=5X
X= -2 5 7 8
Y = -10 25 35 40
P(Y) = 0.59 0.15 0.25 0.01