Page 132 - Microsoft Word - 00 BA3 IW Prelims STUDENT.docx

Chapter 8

Bar Charts

2.1 Key ideas

 Bar charts are a simple way of representing actual data pictorially, subject to the
following rules:

– Distances against the vertical axis are measurements and represent
numerical data

– Horizontal distances have no meaning. There is no horizontal axis or
scale, there are only labels.

 Bar charts are very useful for making comparisons between different data items,
data sets and so on.

2.2 Types

 Multiple  Compound/component

126