Thursday

October 23, 2014

October 23, 2014

Posted by **Carla** on Monday, March 26, 2007 at 6:54am.

Since the order in which they are picked does not matter, the number of combinations is 19!/(7!*12!)=

19*18*17*16*15*14*13/(2*3*4*5*6*7) =?

(Do the numbers or use a hand calculator. Many have keys for the factorial (!) function.)

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