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2 cards from this section. Quick, good the night before a test.
What is a bar graph?
Think about how we can visually compare things.
What type of data does a histogram represent?
Remember the continuous and discrete types of data.
What type of data would you use a histogram for?
Think about how data is spread out across ranges.
True or False: The areas of the bars in a histogram are not proportional to the frequencies of the data.
Reflect on the definition of histograms.
Given the following data with varying widths: Age groups (0-5, 6-10, 11-15) and corresponding frequencies (10, 15, 5), draw an appropriate histogram with correct widths and heights.
Remember the area of a rectangle represents frequency.
Using the following marks data: 0-10 (10), 10-20 (20), 20-30 (15), 30-40 (5), create a frequency polygon from this histogram data without drawing the histogram.
The mid-mark calculations are essential!
6 more questions in this section. Enroll free to practise them all.
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