Question

Use the formula nCr to solve

Of the 100 people in the U.S. senate, 18 served on the Foreign relations Committee. How many ways are there to select Senate members for this committee (assuming party affiliation is not a factor in the selection)

Answer 1

aren't you just choosing 18 from 100 ?
so C(100,18) = huge!!

(appr 3.066 x 10^19)

Answer 2

nCr
100C18
=3.06645108E19
From a T1-83 calculator
Type
100, then MATH,CHOOSE PRB,then scroll
down to number 3.
Enter.