Homework Help: Probability

Posted by Shay on Monday, July 11, 2011 at 8:42pm.

HCC offers 21 Humanities courses. If all students must take 2 of the courses, how many different ways can a student select their Humanities classes?

***my answer is 21*10= 210***

Probability - Max, Monday, July 11, 2011 at 8:44pm
That's correct since 21 * 20 / 2 is 210.

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