Mathematics
Senior High
V(Y)=の1番目の式から2番目への式変形が分かりません。教えてください🙇♀️
A
E(Y) = E (10 X - 10 m +50)
= 10 E(X) - 10
a
X
m+50=50内
V(Y)=V(10x-10m
X- m+50
V(X)
=(10) '(x) = 100
a²=100
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