Discrete Mathematics

Expected Value

Expected Value - Properties

         

If E[3X+Y]=11E[3X+Y] = 11 and E[X]=2,E[X] = 2, what is E[Y]? E[Y]?

If E[4X]=16,E[4X ] = 16 , what is E[X]? E[X] ?

If E[3X+9Y]=6E[3X+9Y] = 6 and E[3X+Y]=5,E[3X+Y] = 5, what is E[X+Y]? E[X+Y]?

If E[X]=3, E[X] = 3 , what is E[3X+1]?E[3X + 1 ]?

If E[X]=4,E[Y]=4,E[X] = 4, E[Y] = 4 , what is E[4X+3Y]?E[4X+3Y]?

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