IGCSE Maths / Working with data

Drawing a histogram revision notes

Edexcel International GCSE Maths (4MA1), chapter 19: Working with data, specification point 6.1a. Part of the full course.

Watch the video lesson · IGCSE Maths past papers

A histogram represents grouped continuous data using bars whose areas show the frequencies. To draw one, calculate each class width and frequency density, then draw bars across the correct intervals with no gaps.

More lessons in Working with data

• Bar charts, pie charts and pictograms
• Two-way tables and reading statistical diagrams
• Mean from a frequency table
• Estimated mean and modal class for grouped data
• Frequency density
• Reading frequencies from a histogram
• Completing a histogram from a part drawn graph
• Estimating a frequency within a class
• Building a cumulative frequency table
• Plotting a cumulative frequency diagram
• Reading values from a cumulative frequency graph
• Estimating how many are above or below a value
• Estimating the median from a cumulative frequency diagram
• Estimating the interquartile range from a cumulative frequency diagram
• Comparing two cumulative frequency distributions
• Mean, median, mode and range
• Quartiles and the interquartile range for discrete data
• What a measure of spread tells you
• Using the interquartile range to compare distributions