Sl. No. | Marks obtained | Number of students |
1 | 25 | 20 |
2 | 30 | 20 |
3 | 35 | 40 |
4 | 40 | 20 |
The marks obtained by 100 students of a class in an examination are given below:
MarksNumber of students0−525−10510−15615−20820−251025−302530−352035−401840−45445−502
Draw cumulative frequency curves by using (i) 'less than's series and (ii) 'more than' series.
Hence,find the median.
Marks | 0−10 | 10−20 | 20−30 | 30−40 | 40−50 |
No. of students | 1 | 4 | 5 | 8 | 2 |