A box contains a nickel, a penny, and a dime. A dime is chosen first and is not replaced. Find the probability of choosing a second coin that is a nickel. P(nickel|dime)

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asked Mar 3, 2022 187k views

25 votes

A box contains a nickel, a penny, and a dime. A dime is chosen first and is not replaced. Find the probability of choosing a second coin that is a nickel.

P(nickel|dime)

Mathematics
middle-school

Marcel Wilson asked

by Marcel Wilson

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2 Answers

5 votes

Probability of choosing a second coin that is a nickel = 1/2

Bertil Baron answered Mar 5, 2022

by Bertil Baron

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9 votes

50%
There are two coins left in the box, and one of them is a nickel, so the fraction is 1/2 and that is a 50% chance

William Jockusch answered Mar 10, 2022

by William Jockusch

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