Amit989 wrote:
Bunuel wrote:
Official Solution:
A basket contains 3 white and 5 blue balls. Mary will extract one ball at random and keep it. If, after that, John will extract one ball at random, what is the probability that John will extract a blue ball?
A. \(\frac{1}{3}\)
B. \(\frac{3}{8}\)
C. \(\frac{1}{2}\)
D. \(\frac{5}{8}\)
E. \(\frac{11}{16}\)
There are 2 different scenarios to evaluate:
1. Mary will extract a white ball, John will extract a blue
A basket contains 3 white and 5 blue balls. Mary will extract one ball at random and keep it. If, after that, John will extract one ball at random, what is the probability that John will extract a blue ball?
A. \(\frac{1}{3}\)
B. \(\frac{3}{8}\)
C. \(\frac{1}{2}\)
D. \(\frac{5}{8}\)
E. \(\frac{11}{16}\)
There are 2 different scenarios to evaluate:
1. Mary will extract a white ball, John will extract a blue
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