Answer to Question #111189 in Statistics and Probability for Nimra

Question

In how many ways a committee of 3 students can be selected from 4 students A,B,C,D ?

Answer 1

The total number of ways=

$${C_3}^4=\frac{4!}{3!×(4-3)!}=\frac{4×3!}{3!×1!}=\frac{4}{1!}=4$$