Question
The fraction X of male runners and the fraction Y of female runners who compete in marathon races are described by the joint density functionf(x,y)=8xy,0yx1
The fraction X of male runners and the fraction Y of female runners who compete in marathon races are described by the joint density functionf(x,y)=8xy,0yx1
. Find the correct options in the following?
A.E(X Y) = 4/9
B.E(X) = 4/5
C.E(Y) = 4/15
D.cov(X,Y) = 4/225.
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Auditing Cases An Active Learning Approach
Authors: Mark S. Beasley, Frank A. Buckless, Steven M. Glover, Douglas F. Prawitt
2nd Edition
0130674842, 978-0130674845
