Question

Giving a test to a group of students, the grades and gender are summarized below

A B C Total
Male 12 10 17 39
Female 2 19 3 24
Total 14 29 20 63


If one student was chosen at random,

find the probability that the student got a B.

Answer 1

Find the probability that the student got a B is a student is chosen at random. Doesn’t matter the gender. Alright.
So we can simply take the total number of students that got B and the total number of students overall. That will be 29/63.
29 divided by 63 is 0.46. Multiply that by 100 and you’ll convert that to a percentage, which is 46%.
If one student was chosen at random, the probability that the student got a B is 46%.
Hope this helped!