‹ Maths Essentials
Statistics and charts
Averages and range, frequency tables, charts and diagrams, scatter graphs and sampling, and (Higher) cumulative frequency, box plots and histograms.
Start: Averages and range About 14 min
Lessons
Practice and tests
By the end you can
Work out the mean, median, mode and range of a list, and a missing value from the mean Compare two sets of data using an average and a measure of spread Find averages from frequency tables and estimate the mean of grouped data Draw and read bar charts, pie charts, stem-and-leaf diagrams, frequency polygons and time series, and spot misleading graphs Describe correlation, use a line of best fit, and explain why a sample may be biased Use cumulative frequency graphs, box plots and histograms with frequency density (Higher) Helps with: GCSE (AQA, Edexcel, OCR)
Previous unit: Probability and statistics: trees, experiments, samples and claims
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