TVD2468
TVD2468 TVD2468
  • 02-05-2018
  • Mathematics
contestada

A bag has 10 marbles and 4 are black. Joseph picks 2 marbles without replacing the first. What is the probability that both are black?

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FallenKnight FallenKnight
  • 02-05-2018
If there are 10 marbles in total then the probability is 2/10
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