Grouped Data

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Edexcel

Higher June 2025 Paper 1 Q1

EdexcelCurrent spec5 marksGrouped Data

1 The table gives information about the distances 100 adults travel to work.

Distance (\(d\) km)Frequency
\(0 \lt d \leqslant 5\)26
\(5 \lt d \leqslant 10\)40
\(10 \lt d \leqslant 15\)16
\(15 \lt d \leqslant 20\)10
\(20 \lt d \leqslant 25\)8
(a) Write down the modal class. (1)
(b) Work out an estimate for the mean distance. (4)

Higher November 2024 Paper 1 Q1

EdexcelCurrent spec5 marksAverages (including IQR)Grouped Data

1 The table shows some information about the hourly rates of pay of 60 workers.

Hourly rate of pay
(\(p\) dollars)		Frequency
\(10 \lt p \leqslant 15\)18
\(15 \lt p \leqslant 20\)16
\(20 \lt p \leqslant 25\)14
\(25 \lt p \leqslant 30\)8
\(30 \lt p \leqslant 35\)4
(a) Write down the modal class. (1)
(b) Work out an estimate for the mean hourly rate of pay of the 60 workers. (4)