Learning objective

Calculate the standard deviation of a small data set and an ungrouped frequency distribution using a formula, and estimate the standard deviation for a grouped frequency distribution.

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Cambridge IGCSE StatisticsQuartiles, percentiles and measures of dispersion

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Quick explanation

Calculate the standard deviation of a small data set and an ungrouped frequency distribution using a formula, and estimate the standard deviation for a grouped frequency distribution

This point belongs to Quartiles, percentiles and measures of dispersion, especially Quartiles, percentiles and measures of dispersion outcomes.
You need to be able to calculate the standard deviation of a small data set and an ungrouped frequency distribution using a formula, and estimate the standard deviation for a grouped frequency distribution.
The key ideas to know are Calculate.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Calculate

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This objective helps connect Quartiles, percentiles and measures of dispersion outcomes to exam-style questions, flashcards, and revision notes for Quartiles, percentiles and measures of dispersion.

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