1 Compute the mean, median, mode, quartiles, range, and interquartile range for individual datasets and explain the different uses of each measure. 2 Estimate the mean for both grouped discrete and grouped continuous data. 3 Determine the modal class from a grouped frequency distribution.

Quick explanation

1 Compute the mean, median, mode, quartiles, range, and interquartile range for individual datasets and explain the different uses of each measure. 2 Estimate the mean for both grouped discrete and grouped continuous data. 3 Determine the modal class from a grouped frequency distribution

• This point belongs to Averages and measures of spread, especially Averages and measures of spread outcomes.
• You need to be able to 1 Compute the mean, median, mode, quartiles, range, and interquartile range for individual datasets and explain the different uses of each measure. 2 Estimate the mean for both grouped discrete and grouped continuous data. 3 Determine the modal class from a grouped frequency distribution.
• The key ideas to know are Calculate, Determine, and Explain.
• Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.