Mathematics

The marks obtained (out of 100) by 400 students in an examination are given below :

MarksNo. of students
0-1010
10-2020
20-3022
30-4040
40-5054
50-6076
60-7080
70-8058
80-9028
90-10012

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.

Statistics

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