GCSE Statistics Population Pyramids.

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Presentation transcript:

GCSE Statistics Population Pyramids

Population pyramids look similar to back to back histograms They make it easy to compare aspects of population, often by gender. They usually have class sizes, and therefore bars, the same width

Differences with the material in the book Scale at right hand side not in middle Data is scaled as a percentage Page 101 example 10 Note information for drawing population pyramid on right hand side Page 102 example 11 Note the examiners tip – when comparing two populations, use general statements rather than individual figures

Your turn question 1 and 2 exercise 3F page 105