Each day, Mr. Samms randomly chooses 2 students from his class to serve as helpers. There are 15 boys and 10 girls in the class. What is the probability that Mr. Samms will choose 2 girls to be helpers

I am sure MathMate meant to say

(10/25)(9/24) = 3/20

Probability of choosing 2 girls

=(10/15) * (9/14)
=3/7

Absolutely, thanks Reiny!

To find the probability that Mr. Samms will choose 2 girls to be helpers, we need to determine the total number of possible outcomes and the number of favorable outcomes.

First, let's calculate the total number of possible outcomes. Mr. Samms can choose any 2 students from his class, regardless of gender. The total number of students in the class is 15 boys + 10 girls = 25 students. Therefore, the total number of possible outcomes is given by the combination formula, denoted as C(n, k):

C(25, 2) = 25! / (2! * (25-2)!)
= (25 * 24) / (2 * 1)
= 300

Next, let's calculate the number of favorable outcomes. In this case, Mr. Samms needs to select 2 girls from the 10 available. Therefore, the number of favorable outcomes is given by:

C(10, 2) = 10! / (2! * (10-2)!)
= (10 * 9) / (2 * 1)
= 45

Finally, we can calculate the probability by dividing the number of favorable outcomes by the total number of possible outcomes:

Probability = Number of favorable outcomes / Total number of possible outcomes
= 45 / 300
= 0.15

Therefore, the probability that Mr. Samms will choose 2 girls to be helpers is 0.15 or 15%.