Probability 6549

There are 8 balls in the box, and 3 of them are new. For the first game, 2 balls are randomly selected from the box and returned after the game! For the second game, 2 balls are again chosen at random. What is the probability that both have already been used?

Correct answer:

p =  0.0357

Step-by-step explanation:

C2(8)=(28)=2!(82)!8!=2187=28  p=(28)1=281=0.0357

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