Mathematics, 16.10.2019 03:30 EBeast7390
Abox contains four red balls and eight black balls. two balls are randomly chosen from the box, and are not
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(rib) =
p(b, r) =
the probability that the first ball chosen is black and the second ball chosen is red is about
percent
Answers: 3
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Abox contains four red balls and eight black balls. two balls are randomly chosen from the box, and...
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