 Data handling means recording and gathering information
and then presenting it in a way that is meaningful to others.
12. Data
12.1 Representing and Interpreting data
Data
 It is the collection of facts such as numbers, words,
measurement, observation or descriptions of things.
 Data can be qualitative or quantitative.
Data
Qualitative
Quantitative
 Descriptive information
(Describes something)
 Numerical information
(numbers)
Data handling
Ways of representing data
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Tables
Dot plots
Bar charts
Waffle diagram
Dot Plot
 A box plot is a visual way of recording data values.
 Dot plots are useful for displaying small amounts of data
in discrete bins (categories).
Waffle Diagram
 Square charts, also called waffle charts, are a form of pie
charts that use squares instead of circles to represent
percentages.
Bar chart
 It is a chart graphical display of data using bars of different
height.
 It is a chart drawn using rectangular bars to show how large
each value is.
 The chart can be horizontal or vertical.