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2 cards from this section. Quick, good the night before a test.
Define a bar graph and provide an example.
Think about a scenario where categories can be compared.
What does the height of a bar in a bar graph represent?
Consider what you're measuring with each bar.
What type of data does a bar graph represent?
Think about examples of data types.
True or False: Histograms have gaps between bars.
Consider the difference between histograms and bar graphs.
Create a histogram for the following marks distribution: [0-20: 6, 20-40: 15, 40-60: 25, 60-80: 10]. Discuss its shape and what it indicates.
Think about the spread of scores.
Given a dataset of temperatures over a week, create both a histogram and a frequency polygon, comparing the two visually.
Look closely at how data changes over days.
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