There are two ways of constructing an Ogive Graph or cumulative frequency curve.
(Ogive is pronounced as O-jive). The curve is usually of 'S' shape.
We illustrate both methods by example given below:
Draw a 'less than' ogive curve for the following data:
(ii) Join the points plotted by a smooth curve.
(iii) An Ogive is linked to a point on the X-axis representing the actual lower limit of the first class.
Scale:
X -axis 1 cm = 10 marks, Y -axis 1cm = 10 c.f.
Also find linear-equation’s posterous
(Ogive is pronounced as O-jive). The curve is usually of 'S' shape.
We illustrate both methods by example given below:
Draw a 'less than' ogive curve for the following data:
To Plot an Ogive:
(i) We plot the points which coordinates having abscissae as actual limits & ordinates as the cumulative frequencies, (10, 2), (20, 10), (30, 22), (40, 40), (50, 68), (60, 90), (70, 96) and (80, 100) are the coordinates of the points.(ii) Join the points plotted by a smooth curve.
(iii) An Ogive is linked to a point on the X-axis representing the actual lower limit of the first class.
Scale:
X -axis 1 cm = 10 marks, Y -axis 1cm = 10 c.f.
Also find linear-equation’s posterous
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