Displaying and describing categorial data - Pie charts
3 important questions on Displaying and describing categorial data - Pie charts
What does a pie chart shows?
The whole group of cases as circle. They slice the circle into pieces whose sizes are proportional of the fraction of the whole in each category.
What do you have to do before you make a bar chart or a pie chart?
Check on the Categorial data condition. Data are counts or percentages of individuals in categories.
What does: 'selecting the proper methods' mean?
You have to think about the situation at hand and check that the type of analysis you plan is appropriate.
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