Question

5. There are 28 right-handed students in a class of 31. What is the probability that a student chosen at random will be left-handed?

Answer 1

28 of the 31 students are right-handed. So 31 - 28 = 3 students are left-handed. The probability of randomly choosing a lefty is
`(3)/(31)`.

Answer 2

There are 28 right handed students out of 31 total.
So there are 31 - 28 = 3 left handed students.
The probability of choosing a left handed student is 3/31.

hope this helps, Hero122Hero! :)