 |
Главная Случайная страница Контакты | Мы поможем в написании вашей работы! | |
Table 11.1 Graphs for presenting categorical data and when to use them
|
|
| Graph | Use when you want to present data to |
| Bar chart | show frequency of occurrence and emphasise highest and lowest categories for one variable (frequencies are normally displayed vertically and categories horizontally) show the trend for one variable over time (frequencies are normally displayed vertically and discrete time periods horizontally) |
| Pie chart | emphasise proportions in each category for one variable |
| Multiple bar chart | compare frequency of occurrence for two or more variables, emphasising highest and lowest categories (frequencies are normally displayed vertically and categories horizontally) compare the trends for two or more variables over time (frequencies are normally displayed vertically and discrete time periods horizontally) |
| Pictogram | emphasise highest and lowest categories for one variable |
| Stacked bar chart | compare frequency of occurrence for two or more variables, emphasising the variables’ totals (frequencies are normally displayed vertically and categories horizontally) |
| Percentage component bar chart | compare proportions in each variable category for two or more variables (proportions are normally displayed vertically and categories horizontally) |
| Comparative pie chart | compare proportions in each variable category for two or more variables |
| Comparative proportional pie chart | compare proportions in each variable category and relative totals for two or more variables |
5. Complete the following sentences:
· Tables and graphs will enable you…
· Tables present information in rows and columns, and should be used when you want…
· A frequency tableor frequency distributionsummarises…
· Frequencyis often represented by statisticians by the lower-case letter f, whilst ….
· Cross-classification tables are used when you need …
· In the two-way tables, the categories of one of the variables form the rows and …
· When you interpret your cross-tabulation, remember that …
· It would be important to use more easily understandable names for…
· Your table should be clear enough to allow it to be…
Дата публикования: 2015-01-09; Прочитано: 1441 | Нарушение авторского права страницы | Мы поможем в написании вашей работы!
