Statistics and data interpretation

Mean, median, mode, tables and charts.

General Test5 questions
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Measures

  • Mean: sum ÷ count.
  • Median: the middle value when data are ordered (average of the two middle values if the count is even).
  • Mode: the most frequent value.
  • Range: highest − lowest.

Data interpretation

Read titles, units and scales carefully; compute only what is asked; use approximation to save time.

Practice questions

The median of 3, 7, 9, 2, 5 is:Easy
The mode of 4, 6, 6, 7, 8, 6, 4 is:Easy
The range of 12, 5, 19, 8, 15 is:Easy
The median of 2, 4, 6, 8 is:Medium
A school’s pass percentage was 80% in a year with 250 students. How many students passed?Easy
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