Populations, samples, bias and capture–recapture.
Mean, median, mode and range from lists and tables.
Bar charts, pie charts, frequency polygons and time series.
Quartiles, interquartile range and comparing distributions.
Frequency density, unequal class widths and estimating from histograms.
Correlation, lines of best fit, interpolation and extrapolation.
Work through each topic to complete the section.