In general, E(XY) + E(X) × E(Y), but if X and Y are E(XY) = E(X) × E(Y). independent RVs,

Elementary Geometry for College Students
6th Edition
ISBN:9781285195698
Author:Daniel C. Alexander, Geralyn M. Koeberlein
Publisher:Daniel C. Alexander, Geralyn M. Koeberlein
Chapter6: Circles
Section6.CT: Test
Problem 11CT: aIf HP=4, PJ=5, and PM=2, find LP. _ bIf HP=x+1, PJ=x1, LP=8, and PM=3, find x. _
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Prove the property

In general, E(XY) + E(X) × E(Y), but if X and Y are independent RVs.
ΕXY)- ΕX) x Ε(Υ .
Transcribed Image Text:In general, E(XY) + E(X) × E(Y), but if X and Y are independent RVs. ΕXY)- ΕX) x Ε(Υ .
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