A bag contains two orange and six black balls. You take two balls from the bag,...

A bag contains two orange and six black balls. You take two balls from the bag, one by one, with replacement. How many orange balls do you expect to get?

Solutions

Expert Solution

P(orange ball) = 2 / (2 + 6) = 0.25

Expected value = 2 * 0.25 = 0.5 (ans)

orchestra answered 1 year ago

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