Solution - Probability - an Experimental Approach



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Blood Group
Number of Students

The above frequency distribution table represents the blood groups of 30 students of a class. Use this table to determine the probability that a student of this class, selected at random, has blood group AB.


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1500 families with 2 children were selected randomly, and the following data were recorded:-

Number of girls in a family210
Number of families475814211

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Also check whether the sum of these probabilities is 1.

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MarksNumber of students
0 - 207
20 - 3010
30 - 4010
40 - 5020
50 - 6020
60 - 7015
70 - above8
         Total                               90

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Solution for concept: Probability - an Experimental Approach. For the course 8th-10th CBSE