2.3.4. (a) How many teams of 5 players can be chosen from a group of 10 players? Assuming team members have indistinugishable roles, this is a matter of selecting 5 distinct elements in no order from a set of 10; we can count the ways ot do this with the combination statistic 10 5 = 10! 5!5! = 10 9 8 7 6 120 = 252. Question 329389: How many ways can a 4-person subcommittee be selected from a committee of 9 people? Answer by Alan3354(65634) ( Show Source ): You can put this solution on YOUR website!

3.) How many diagonals can be drawn in an octagon? 4.) In how many ways can seven questions out of ten be chosen on an examination? 5.) In how many ways can three books be chosen from five books? 6.) From a group of twelve ladies a committee of three is to be selected.