A survey was taken on 30 classes at a school to find the total number of left-handed students in each class. The table below shows the results:

No. of left-handed students 0 1 2 3 4 5
Frequency (no. of classes) 1 2 5 12 8 2



A class was selected at random.

Find the probability that the class has 2 left-handed students.

Asked by Topperlearning User | 30th Oct, 2017, 08:22: AM

Expert Answer:

Let S be the sample space and

A be the event of a class having 2 left-handed students.

n(S) = 30

n(A) = 5

Answered by  | 30th Oct, 2017, 10:22: AM