A frequency distribution of number of children in 50 families of a region is as under
Number of children x 0 1 2 3 Total
Number of families f 10 25 12 3 50
Obtain more than type cumulative frequency distribution for these data.
Answers
Given : A frequency distribution of number of children in 50 families
Number of children x 0 1 2 3 Total
Number of families f 10 25 12 3 50
To Find : Obtain more than type cumulative frequency distribution for these data.
Solution:
Number of children Number of families
More than 0 10
More than 1 25
More than 2 12
More than 3 3
Number of children Number of families
0 50
1 40
2 15
3 3
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
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
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