Math Is Fun Forum

daga2222

Member

Registered: 2013-08-21

Posts: 1

Probability Problem

I don't know much about statistics so I'm not sure how complex this problem is but:

I have a deck of 9 cards, and I have 3 favorite cards in the deck. I choose 3 cards at random from the deck. What is the probability that at least one of the 3 random cards is a favorite card?

If someone can show me how to get to the answer, it would be much appreciated. Thanks!

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Probability Problem

Hi;

The distributions in statistics are a great help in solving many probability problems.

If you are not replacing the cards then you use the hypergeometric distribution.

The probablility is 16 / 21.

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