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26 May, 18:37

Two numbers, x and y, are randomly chosen from the interval [0,1]. What is the expected value of (x+y) ?

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Answers (2)
  1. 26 May, 20:36
    0
    It could be 0 and 0 which yeilds a value of 0

    it could be 1 and 1 which yields a value of 2

    any number from 0 to 2
  2. 26 May, 22:21
    0
    The expression with an interval of [0,1] means all set of numbers including 0 and 1 and numbers within the range. In this case, the minimum sum could be 0 since x and y could be zero. The maximum is 2 since the two variables could be 1. The interval of x+y should be [0, 2 ].
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