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Data handling and analysis

Data handling and analysis

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Question 32

Aircraft Safety Compliance Study

An aviation safety board conducted a comprehensive compliance audit for a fleet of 160 commercial cargo aircraft. The board developed an Aircraft Safety Integrity Index (ASII) which scores each aircraft's maintenance records on a scale of 0 to 100, where 0 represents critical non-compliance and 100 represents exemplary safety standards.

The inspectors calculated the measures of central tendency for the ASII scores of the fleet:

  • The mean score was 74.2
  • The median score was 85.5
  • The mode score was 91.0

Sketch a graph to show the most likely distribution curve for the ASII scores in this study. Label the axes of your graph and mark on it the positions of the mean, median, and mode.

[3]
Markscheme

Data handling and analysis Questions

  1. A Level
  2. /Psychology
  3. /Data handling and analysis

235 exam-style questions on AQA A Level Psychology Data handling and analysis. Each one has a worked solution and a mark scheme showing where the marks go.

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