# SOLUTION: Two light bulbs get mixed up with seven good ones. If you take two of the bulbs, what is the probability that both are bad?

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 Click here to see ALL problems on Probability-and-statistics Question 706468: Two light bulbs get mixed up with seven good ones. If you take two of the bulbs, what is the probability that both are bad?Answer by stanbon(60771)   (Show Source): You can put this solution on YOUR website!Two bad light bulbs get mixed up with seven good ones. If you take two of the bulbs, what is the probability that both are bad? ---- # of ways to "succeed": 2C2 = 1 ---- # of possible pairs: 9C2 = 36 ---- P(select 2 bad) = 1/36 ============================ cheers, Stan H.