SPA 1.2

What type of graph is used to display categorical data?

• Line chart

• Bar chart

• Scatter plot

• Histogram

What does a bar chart show?

• Category frequencies

• Numerical values

• Continuous data

• Correlation

What does a pie chart show?

• Category frequencies

• Numerical values

• Continuous data

• Correlation

How should the axes be labeled in a bar chart?

• Numerical values

• Category names

• Both numerical values and category names

• No labels needed

What should be indicated on the vertical axis of a bar chart?

• Frequency

• Relative frequency

• Both frequency and relative frequency

• Neither frequency nor relative frequency

What should be done to the axes in order to scale them?

• Add tick marks

• Remove tick marks

• Change the color

• No scaling needed

What should the height of each bar in a bar chart correspond to?

• Category names

• Numerical values

• Frequency or relative frequency

• No specific correspondence

When should a pie chart be used?

• To compare distributions

• To display numerical data

• To show correlation

• To emphasize each category's relation to the whole

What is a good idea when comparing distributions using bar charts?

• Use absolute frequencies

• Use relative frequencies

• Use both absolute and relative frequencies

• Use neither absolute nor relative frequencies

What should be avoided when creating bar charts?

• Using pictures instead of bars

• Using 3-D effects

• Using different bar widths

• Using equal bar heights