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Question 196

OCR Large Data Set 9 contains data for a random sample of 200 individuals aged 16 and over from the 2003–04 American National Health and Nutrition Examination Survey. The code #N/A is used when a value is unavailable.

a.

State the sampling unit.

[1]
b.

Explain why #N/A is preferable to entering 0 for an unavailable weight.

[1]
c.

Weight is unavailable for 4 individuals. Find the percentage of individuals for whom weight is available.

[1]
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2 Statistics Questions

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

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