GCSE · Averages & range

Averages from a frequency tableExam-style questions

Mean, median, mode and range from a discrete frequency table — why the mean is the sum of the fx column divided by the total FREQUENCY, not by the number of rows, and how to run it backwards to find a missing frequency.

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

DifficultyAll Level 1 Level 2 Level 3 Level 4 Level 5

1
The table gives information about the number of people living in each house on one side of a street.
Number of people, $x$ Frequency, $f$
1 2
2 $y$
3 6
4 2
The mean number of people per house is $2.4$ .

(a) Work out the value of $y$ .

(b) Work out the median number of people per house.
Level 5 · 6 marksTry it

Number of people, $x$	Frequency, $f$
1	2
2	$y$
3	6
4	2