- The following distribution gives the height of the students:
Height (in cm) Less than 120 Less than 140 Less than 160 Less than 180 Less than 200
No. of students 12
34
Convert the distribution above to more than type cumulative frequency distribution, and draw it
ogive.
26
40
50 find median
Answers
Given : height of the students:
To find : median
Step-by-step explanation:
Less than 120 12
Less than 140 26
Less than 160 34
Less than 180 40
Less than 200 50
100 - 120 12
120 - 140 14
140 - 160 8
160 - 180 6
180 - 200 10
More than 100 50
More than 120 38
more than 140 24
more than 160 16
More than 180 10
Median = 120 + 20 * (25 - 12)/14
=> Median = 138.6
Less than ogive
The points with the upper limits of the class are plotted on x axis and the corresponding less than cumulative frequencies on y axis.
The points are joined by free hand smooth curve to give less than cumulative frequency curve or the less than Ogive
More than ogive
The points with the Lower limits of the class are plotted on x axis and the corresponding more than cumulative frequencies on y axis.
The points are joined by free hand smooth curve to give more than cumulative frequency curve or the More than Ogive
Learn more:
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