GCSE Secondary Maths Age 13-17 - Probability & Statistics: Cumulative frequency - Explained

The video tutorial covers cumulative frequency, starting with an introduction to frequency tables. It guides students through constructing a frequency table and plotting a cumulative frequency graph. The tutorial emphasizes avoiding common mistakes, such as plotting mid-values instead of end-values. It concludes with an analysis of a claim about parcel weights, demonstrating how to calculate percentages and verify claims using the graph.

What is the cumulative frequency for parcels weighing between 0 and 1 kilograms?

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How many parcels were there between 0 and 3 kilograms?

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What mistake do students commonly make when plotting cumulative frequency?

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What is the cumulative frequency for parcels weighing less than 3.4 kilograms?

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What is the total number of parcels mentioned in the text?

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How do you convert the number of parcels to a percentage?

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Explain the importance of plotting the end intervals from the frequency table.

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