Question

Hi. I have an answer for this question however, not sure. In a certain lottery, 4 numbers between 1 and 10 inclusive are drawn. These are the winning numbers. How many different selections are possible? Assume that the order in which the numbers are drawn are not imprt. (10*9*8*7)/(1*2*3*4)=210.4! = 4*3*2*1= with 24 as the final answer??

Answer 1

You are choosing 4 from 10 or C(10,4) = 210

(why are you multiplying 210 by 4! ?
then the order would be important. )