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2 Statistics

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Question 186

A scatter diagram of mean age against percentage aged 65 or over for the 2011 OCR census data shows a strong positive trend. London boroughs form a distinct lower-left group.

a.

Explain the overall positive trend.

[2]
b.

Explain why one regression line for all Local Authorities may conceal useful information.

[2]
c.

Suggest a suitable further analysis.

[2]
Markscheme

2 Statistics Questions

  1. A Level
  2. /Maths
  3. /2 Statistics

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