Advertisement Remove all ads

Draw a Cumulative Frequency Curve (Ogive) for Each of the Following Distributions: - Mathematics

Advertisement Remove all ads
Advertisement Remove all ads
Advertisement Remove all ads
Chart
Sum

Draw a cumulative frequency curve (ogive) for each of the following distributions: 

Class Interval  10 – 19 20 – 29 30 – 39 40 – 49 50 – 59
Frequency 23 16 15 20 12
Advertisement Remove all ads

Solution

Class Interval (Inclusive) Class Interval (Exclusive) Frequency Cumulative Frequency 
10-19 9.5-19.5 23  23
20-29 19.5-29.5 16 39
30-39 29.5-39.5 15 54
40-49 39.5-49.5 20 74
50-59 49.5-59.5  12 86
    Total  86  

 Steps of construction:

(a) Convert the data into exclusive form.
(b) Taking suitable scales, mark class intervals on x-axis and frequency on y-axis.
(c) Construct rectangles with class intervals as bases and corresponding frequencies as heights.
(d) Join the mid-points of the rectangle to obtain the ogive. 

Concept: Ogives (Cumulative Frequency Graphs)
  Is there an error in this question or solution?

APPEARS IN

Selina Concise Maths Class 10 ICSE
Chapter 23 Graphical Representation
Exercise 23 | Q 2.2 | Page 348
Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×