Mathematics
In a class of 90 students, the marks obtained in a weekly test were as under :
| Marks | No. of students |
|---|---|
| 16 - 20 | 4 |
| 21 - 25 | 12 |
| 26 - 30 | 18 |
| 31 - 35 | 26 |
| 36 - 40 | 14 |
| 41 - 45 | 10 |
| 46 - 50 | 6 |
Draw a frequency polygon for the above data.
Related Questions
Draw a frequency polygon for the following data :
Class intervals Frequency 40 - 50 15 50 - 60 28 60 - 70 45 70 - 80 32 80 - 90 41 90 - 100 18 Construct a combined histogram and frequency polygon for the following data :
Weekly earnings (in rupees) No. of workers 150 - 165 8 165 - 180 14 180 - 195 22 195 - 210 12 210 - 225 15 225 - 240 6 In a city, the weekly observations made in a study on the cost of living index are given in the following table :
Cost of living index Number of weeks 140 - 150 5 150 - 160 10 160 - 170 20 170 - 180 9 180 - 190 6 190 - 200 2 Draw a frequency polygon for the data given above.
In a class of 60 students, the marks obtained in a monthly test were as under :
Marks Students 10 - 20 10 20 - 30 25 30 - 40 12 40 - 50 08 50 - 60 05