A club has 30 members. b)In how many ways can a committee of at least 1 but not more than 3 be selected?

Answer 1

Well, it's the number of 1 person committees + the number of 2 person committees + the number of 3 person committees.

Same formula as part a, just apply it 3 times and add them up.

n choose k = n! / k! (n-k)!

Answer 2

because of the very undeniable truth that it really is a good volume. Do 5 committe so each and each crew as 6 individuals. Now between the crew should be nautral and they should be to blame for overseeing something else of the committee. "2 heads are better than one" solid success! Rogue.