Mathematics
The marks obtained (out of 100) by 400 students in an examination are given below :
Marks | No. of students |
---|---|
0-10 | 10 |
10-20 | 20 |
20-30 | 22 |
30-40 | 40 |
40-50 | 54 |
50-60 | 76 |
60-70 | 80 |
70-80 | 58 |
80-90 | 28 |
90-100 | 12 |
Using a graph paper, draw an ogive for the above distribution. Use your graph to estimate :
(i) the median marks.
(ii) the number of students who obtained more than 80% marks in the examination.
(iii) the number of students who did not pass, if the pass percentage was 35.
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