matthewmt2032 matthewmt2032

20-02-2024
Mathematics

contestada

An urn contains 10 red, 5 black, and 3 green balls. Two balls are picked (one after the other) from the urn. Given that the second ball is red, find the probability that the first was green.

a) 3/51
b) 3/17
c) 1/17
d) 10/17

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