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Mathematics
Problem
An urn contains 3 red and 5 blue balls. Two balls are drawn successively without replacement. What is the probability that the second ball is blue, given that the first ball is red? a)
15
/
56
15/56
15/56
b)
5
/
8
5/8
5/8
c)
5
/
7
5/7
5/7
d)
3
/
7
3/7
3/7
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