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Question
Draw a 'more than' ogive for the data given below which gives the marks of 100 students.
Number of wickets0−1010−2020−3030−4040−5050−6060−7070−80Number of students4610102522185
Draw a 'more than' ogive for the data given below which gives the marks of 100 students.
Number of wickets0−1010−2020−3030−4040−5050−6060−7070−80Number of students4610102522185
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Solution
Taking upper class limits of class intervals on x-axis and their respective frequencies on y-axis, its ogive can be drawn as follows:
Marks (lower class limits) Cumulative frequency (cf) More than 0 96+4 = 100 More than 10 90+6 = 96 More than 20 80+10=90 More than 30 70+10=80 More than 40 45+25=70 More than 50 23+22=45 More than 60 18+5=23 More than 70 5
Taking the lower class limits on x-axis and their respective cumulative frequencies on y-axis, its ogive can be obtained as follows:
Taking upper class limits of class intervals on x-axis and their respective frequencies on y-axis, its ogive can be drawn as follows:
| Marks (lower class limits) | Cumulative frequency (cf) |
| More than 0 | 96+4 = 100 |
| More than 10 | 90+6 = 96 |
| More than 20 | 80+10=90 |
| More than 30 | 70+10=80 |
| More than 40 | 45+25=70 |
| More than 50 | 23+22=45 |
| More than 60 | 18+5=23 |
| More than 70 | 5 |
Taking the lower class limits on x-axis and their respective cumulative frequencies on y-axis, its ogive can be obtained as follows:
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