CBSE Class 7 Answered
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 | 30 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 | 30 Oct, 2017, 10:22: AM
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