The marks obtained by 90 students of a school in Mathematics out of 100are given below: (i) Find the probability that a student obtained less than 20% in the mathematics test. (ii) Find the probability that a student obtained marks 60 or above. Marks 0 - 20 20 - 30 30 - 40 40 - 50 50 - 60 60 - 70 70 - above Total No. of students 7 10 10 20 20 15 8 90

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06-03-2022
Mathematics

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The marks obtained by 90 students of a school in Mathematics out of 100are given below: (i) Find the probability that a student obtained less than 20% in the mathematics test. (ii) Find the probability that a student obtained marks 60 or above. Marks 0 - 20 20 - 30 30 - 40 40 - 50 50 - 60 60 - 70 70 - above Total No. of students 7 10 10 20 20 15 8 90

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