Question

A box contains 6 red balls and 2 black balls. Two balls are drawn at random from it without replacement. If X denotes the number of red balls drawn, then find E(X).

Answer 1

here is Ur answer

given total no of black balls = 2

total no of red balls = 6

subtotal balls= 10

given red balls = x=. 6


to find E(x) = x /subtotal balls
E(x) = 6/10
E(x) = .6 ans

hope it will help u

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