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Example 7 - Chapter 15 Class 9 Probability (Term 2)

Last updated at Aug. 14, 2018 by

Example 7 - The percentage of marks obtained by a student - Ungrouped frequency

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Example 7 The percentage of marks obtained by a student in the monthly unit tests are given below: Based on this data, find the probability that the student gets more than 70% marks in a unit test. Total number of unit tests held = 5 Student obtained more than 70% marks in Unit test II, III & V Number of unit tests in which the student obtained more than 70% marks = 3. So, P(scoring more than 70% marks) = 3 5 = 0.6

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.