SOLUTION: a urn contains 3 white balls and 7 red balls, two balls are drawn at random from the urn without replacement. what Is the probability that the balls will have the same color?

Algebra ->  Probability-and-statistics -> SOLUTION: a urn contains 3 white balls and 7 red balls, two balls are drawn at random from the urn without replacement. what Is the probability that the balls will have the same color?      Log On

Notice that 3 + 7 = 10.


The probability under the question is


    P =  =  =  = .