Intro in to Statistics help

Statistics
Tutor: None Selected Time limit: 1 Day

A ski patrol unit has 9 members available fro duty, and 2 of them are to be sent to rescue an injured skier. In how many ways can 2 of these 9 members be selected? 

May 5th, 2015

This a combination problem because ORDER DOES NOT MATTER.

So, 9C2 = 36

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May 5th, 2015

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May 5th, 2015
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May 5th, 2015
May 22nd, 2017
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