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30. Statistics

Using scatter graphs to assess cost of living pressures

Pupils analyse survey data to research the effects of rising living costs in their community.

Scenario

You are completing an internship with your local council. During the internship, you have been researching the impact of the increased cost of living on people in your area. You have been presented with the results of various surveys that your department has carried out and have now been asked to analyse the data.

Curriculum references

National Curriculum 6 Use and interpret scatter graphs of bivariate data; recognise correlation and know that it does not indicate causation; draw estimated lines of best fit; make predictions; interpolate and extrapolate apparent trends whilst knowing the dangers of so doing.
OCR 12.03a Interpret correlation within the context of the variables, and appreciate the distinction between correlation and causation. Draw a line of best fit by eye, and use it to make predictions. Interpolate and extrapolate from data, and be aware of the limitations of these techniques.
AQA Edexcel S6 Use and interpret scatter graphs of bivariate data; recognise correlation and know that it does not indicate causation; draw estimated lines of best fit; make predictions; interpolate and extrapolate apparent trends whilst knowing the dangers of so doing.