A-level · Data presentation

Types of data and grouped frequencyExam-style questions

Qualitative vs quantitative data, and within quantitative the split between discrete and continuous; how continuous data is grouped into classes, and how to read off the class boundaries, class width and midpoint you need before you can draw a histogram or estimate an average.

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6 questions · A-level level · mark scheme and worked solution on each · no sign-up to try

DifficultyAllLevel 2Level 3
  1. 1
    Explain the difference between discrete and continuous quantitative data, giving an example of each.
    Level 3 · 2 marksTry it
  2. 2
    In a survey, the following are recorded for each person:
    (a) their shoe size;
    (b) their annual income;
    (c) their preferred mode of transport. Classify each variable.
    Level 3 · 3 marksTry it
  3. 3
    A large data set records the daily maximum temperature at a weather station. State the type of this data, and give one reason a value might be grouped into classes when presented.
    Level 3 · 2 marksTry it
  4. 4
    Explain why "the number of cars in a car park, recorded every hour" is discrete, whereas "the speed of cars passing a checkpoint" is continuous.
    Level 3 · 2 marksTry it