Finding the Modal Class and Completing a Cumulative Frequency Table

The video tutorial explains how to analyze a table of money spent by families on holidays. It covers identifying the model class, completing a cumulative frequency table, plotting a cumulative frequency graph, calculating the interquartile range, and estimating the number of families spending more than a specified amount. The tutorial emphasizes accuracy in plotting and calculations to ensure correct results.

What should you do if your cumulative frequency total does not match the expected value?

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Explain the significance of the cumulative frequency graph in this context.

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What are the marks allocated for correctly plotting the cumulative frequency graph?

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What is the estimated number of families that spent more than £450 on holiday?

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