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f (x, y) =(x+y)/(5(5 + 2)) is a joint probability density function over the range 0...

f (x, y) =(x+y)/(5(5 + 2)) is a joint probability density function over the range 0 < x < 5 and 0 < y < 2. Find V (X). Please report your answer to 3 decimal places.

Math   Statistics-And-Probability   
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Answer #1

Therefore,

V(X) or Variance of X = 1.729

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