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2 Statistics

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Question 481

A file of patient ages contains -2, 18, 31, 31, 146 and #N/A.

a.

Identify three values or features requiring investigation.

[3]
b.

Explain why replacing every questionable value by the sample mean may distort the analysis.

[1]
Markscheme

2 Statistics Questions

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

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