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Posted by on Friday, May 13, 2011 at 5:20pm.

A lottery is set up in which players pick six numbers from the set 1, 2, 3, ... , 39, 40. How many different ways are there to play this lottery? (In this game the order in which the numbers are picked does NOT matter.)

  • math help pls! - , Friday, May 13, 2011 at 7:12pm

    the number of ways to choose 6 numbers (independent of order) out of 40 is
    "40 choose 6"
    =C(40,6)
    =40!/((40-6)!6!)
    =40!/(34!6!)

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