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Conditional Expectations Pg 7 Example

Discussion in 'CS1' started by Andrew Brown, Dec 4, 2021.

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  1. Andrew Brown

    Andrew Brown Keen member

    Question part ii. CS1:05 Page 7
    Is there a way of working out to obtain f(x) = 6/5*x(x+1) Starting from E[Y|X=x]
    The solution to the part ii of the question refers to the f(x) given in an earlier solution but that solution started from f(x,y) to derive f(x)
     
    Andrew Brown, Dec 4, 2021
    #1
  2. Nandika

    Nandika Member

    you can work f(x) simply from f(x,y) by doing this:
    integrate from 0 to 2 f(x,y) wrt y
    0->2 : 3/5*x(x+y) dy
     
    Nandika, Dec 5, 2021
    #2
    Andrew Brown likes this.

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