[Solved] In How Many Ways 2 Students Can Be Chosen From The Class Of 20 Students?
To choose 2 students from a class of 20 students, we use combinations since the order in which the students are chosen does not matter. The formula for combinations is: �(�,�)=�!�!(�−�)!C(n,r)=r!(n−r)!n! Where: In this case, �=20n=20 (total students) and �=2r=2 (students to be chosen). Step 1: Plug in the values into the formula: �(20,2)=20!2!(20−2)!C(20,2)=2!(20−2)!20! Now,…