please tell me how to draw less and more than ogive graph
Answers
Answer:
Step-by-step explanation:
How To Construct An Ogive
Cumulative frequencies of a distribution can also be charted on a graph. The curve that results by plotting these is called the Ogive Curve. Since the cumulative frequencies can either be ‘less than’ or ‘more than’ type, there are two type of ogives called ‘less than’ type and ‘more than’ type ogive. The value of median and other partition values can be located from the ogives. The technique of drawing frequency curves and cumulative frequency curves is more or less the same. The only difference is that in case of simple frequency curves the frequency is plotted against the mid point of a class interval whereas in case of a cumulative frequency curve it is plotted at the upper or limit of a class interval depending upon the manner in which the series has been cumulated.
Example on How to construct an ogive
Example: Marks obtained by the students of a class in statistics test are :
Marks 0 – 10 10 – 20 20 – 30 30 – 40 40 – 50
Number of students 4 8 18 15 5
Draw ‘less than’ and ‘more than’ ogives.
Solutions. First, the ‘less than and ‘more than’ cumulative frequencies will be calculated and the ogives will be drawn on the basis of these cumulative frequencies.
Calculation Of Cumulative Frequencies
