GCSE · Data representation

Time seriesExam-style questions

Measurements plotted against time and joined in order — why joining is legitimate here but not on a scatter graph, how to describe a trend so it earns the mark, how to spot seasonal variation and use it to predict the next quarter, and why predicting far beyond the data is worthless.

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11 questions · GCSE (Higher) level · mark scheme and worked solution on each · no sign-up to try

DifficultyAllLevel 1Level 2Level 3Level 4Level 5
  1. 1
    The time series graph shows the number of ice creams (in hundreds) a shop sold each quarter over two years.2468481216202428323640Quarter (1 = Q1 of 2024)Ice creams sold (hundreds)(a) In which quarter were the most ice creams sold, and (b) how many was that?
    Level 1 · 2 marksTry it
  2. 2
    The time series graph shows the number of ice creams (in hundreds) a shop sold each quarter over two years.2468481216202428323640Quarter (1 = Q1 of 2024)Ice creams sold (hundreds)Work out the difference between the sales in quarter 33 and quarter 44.
    Level 1 · 1 markTry it