Daily Practice

Foundation

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12th March 2026

5 questions · Foundation tier · 282 questions in this band

  1. 1
    Comparing Data Sets

    The mean rainfall in April was 45 mm with a range of 20 mm; in May it was 45 mm with a range of 8 mm. Compare April and May.

  2. 2
    Combined Mean

    Group A has 18 items with mean 62. Group B has 22 items with mean 70. Find the combined mean.

  3. 3
    Designing Questionnaires and Surveys

    Give one reason why the response options '0-5, 5-10, 10-15' are a poor choice for hours of homework.

  4. 4
    Experimental Design

    What is meant by the independent variable in an experiment?

  5. 5
    Median Quartiles and IQR

    For the ordered data 6, 9, 11, 14, 16, 18, 20, 23, 25, 28, find the interquartile range.

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