Mathematics
Draw an ogive for the following frequency distribution :
| Class-intervals | Frequency |
|---|---|
| 1 - 10 | 3 |
| 11 - 20 | 5 |
| 21 - 30 | 8 |
| 31 - 40 | 7 |
| 41 - 50 | 6 |
| 51 - 60 | 2 |
Related Questions
The table given below shows the runs scored by a cricket team during the overs of a match.
Overs Runs scored 20-30 37 30-40 45 40-50 40 50-60 60 60-70 51 70-80 35 (a) Draw a histogram representing the above distribution.
(b) Estimate the modal runs scored.
Draw an ogive for the following frequency distribution :
Height (in cm) No. of students 150 - 160 8 160 - 170 3 170 - 180 4 180 - 190 10 190 - 200 2 Draw a cumulative frequency curve for the following data :
Marks obtained No. of students 24 - 29 1 29 - 34 2 34 - 39 5 39 - 44 6 44 - 49 4 49 - 54 3 54 - 59 2 The weight of 50 workers is given below :
Weight (in kg) No. of workers 50 - 60 4 60 - 70 7 70 - 80 11 80 - 90 14 90 - 100 6 100 - 110 5 110 - 120 3 Draw an ogive of the given distribution using a graph sheet. Take 2 cm = 10 kg on one axis and 2 cm = 5 workers along the other axis. Use a graph to estimate the following :
(i) the upper and lower quartiles.
(ii) if weighing 95 kg and above is considered overweight find the number of workers who are overweight.