← Maths syllabus

EnglandMaths

Statistics

4 dot points across 4 inquiry questions. Click any dot point for a focused answer with worked past exam questions where available.

How do you find the mean, median, mode and range, including from frequency tables and grouped data?

The mean, median, mode and range; finding averages from frequency tables and from grouped data using the midpoint and an estimated mean; and comparing distributions using an average and the range.
A focused answer to the Edexcel GCSE Mathematics statistics content on averages and spread, covering the mean, median, mode and range, finding averages from frequency tables and grouped data, and comparing distributions.
10 min answer →

How do you choose a representative sample, classify types of data, and design fair data collection?

Populations and samples, representative and biased sampling, random sampling, types of data (qualitative and quantitative, discrete and continuous), and designing questionnaires and data collection.
A focused answer to the Edexcel GCSE Mathematics statistics content on sampling and data, covering populations and samples, representative and biased sampling, random sampling, types of data, and designing fair data collection.
9 min answer →

How do you draw and interpret scatter graphs, describe correlation, and use a line of best fit?

Scatter graphs and bivariate data, describing correlation (positive, negative or none), drawing and using a line of best fit to estimate values, and recognising the dangers of extrapolation and correlation versus causation.
A focused answer to the Edexcel GCSE Mathematics statistics content on scatter graphs and correlation, covering bivariate data, describing correlation, drawing and using a line of best fit, and the limits of extrapolation and correlation versus causation.
9 min answer →

How do you draw and interpret bar charts, pie charts, frequency polygons, cumulative frequency graphs and box plots?

Drawing and interpreting statistical diagrams: bar charts, pictograms, pie charts, frequency polygons, cumulative frequency graphs and box plots, and finding the median, quartiles and interquartile range (Higher tier).
A focused answer to the Edexcel GCSE Mathematics statistics content on charts and graphs, covering bar charts, pie charts, frequency polygons, cumulative frequency graphs and box plots, and finding the median, quartiles and interquartile range.
10 min answer →