• A Level Statistics Quiz 1
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  • Why might a random sample be preferred over a convenience sample in statistical analysis?
    A random sample reduces bias and is more representative of the population.
  • What is the difference between qualitative and quantitative data?
    Qualitative data is descriptive (e.g. colours), while quantitative data is numerical (e.g. heights).
  • Why is the interquartile range often preferred over the range?
    It is not affected by extreme values or outliers.
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