Classification, Tabulation, Graphical and Diagrammatic Presentation of Data
Classification, Tabulation, Graphical and Diagrammatic Presentation of Data
Classification, Tabulation, Graphical and Diagrammatic Presentation of Data
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Tabulation of Data
Tabulation
The orderly or systematic presentation of Numerical Data in rows and columns designed to clarify the problem under consideration and to facilitate the comparison between the figures
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simplifies complicated
data
Tabulation
presents quantitative data in concise and condensed form facilitates Comparison of Data of data in tabular form provides a basis for analysis and interpretation of such data
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It
Presentation
Types of Table
Simple Tables
Tables :-
which are prepared on basis of only one characteristic of collected Data One way Tables .
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Table
which show more than one characteristics of Data are known as Complex Tables . way - 2 characteristics way 3 characteristics .
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Total 30 25 20 25 100
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10 7 5 13 35
In a sample study about tea-Habit in two towns the following information was received. females 40%;total tea drinkers were 45 %male non-tea drinkers were 20 % B :- Males were 55 % ,male non-tea drinkers were 30 % and female tea drinkers were 15% the missing information ,tabulate the above data
Town A : Town
Supplying
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Solution
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collected by investigator Raw Data unorganized ,ungrouped ,unclassified Data Data Difficult to extract desired information
Raw To
extract various information Raw or Unorganized data are to be arranged in the form of frequency distribution distribution is a tabular representation that organizes data in terms of individual data or classes specified by class intervals and shows the frequency of each observation or class
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A frequency
Series (Distribution )
Those series in which the items or observations are listed singly Marks(x): 35 28 25 35 48 63 57 48 55 35
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Frequency Distribution
Two
Multivariate
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Discrete
variable FD Discrete
FD
Continuous A
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Continuous FD
Height of 120students (cm) 130 No. of students 10 130140 17 140-150 10
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Class
limit :- the class limits are the smallest and largest values in the class . for instance class 120-130 value 120- lower limit value 130 upper limit
Say
Lowest
Highest Also
Class Class
Interval :- difference between upper and lower limit of class 120-130 130-120 = 10
Class width:- difference between lower limit of that class interval and lower limit of the class interval next to it
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FD FD
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in case of continuous FD if the observations are taken nearest to its integral value (Discrete form inclusive type) boundary 0.5 lower than class limit 0.5 higher 159.5 and 164.5
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Lower
Upper
160-164-:
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limit of one class-lower limit of others lower limit included not the upper limit
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No.of students 5 15 5 15
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Class
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limit)
(lower
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should be nonoverlapping should cover all observations should be of equal width intervals should not be less than 5 and more than 15
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Cumulative frequency
Less More
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Present a less than and more than cumulative frequency distribution form the following data Marks No. of CumulativCumulative
in students e frequency statisti (Frequenc frequency (more than ) cs y) (less than) 0-10 15 Less than 10 More than 0 10-20 25 15 100
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