Mathematics, 17.10.2019 21:00 zaanebali
Abox contains four red balls and eight black balls. two balls are randomly chosen from the box, ar
replaced. let event b be choosing a black ball first and event r be choosing a red ball second.
what are the following probabilities?
p(b) =
p(
rb) =
pb n r) =
the probability that the first ball chosen is black and the second ball chosen is red is about
Answers: 1
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Abox contains four red balls and eight black balls. two balls are randomly chosen from the box, ar
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