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The Range
1 Find the range for each set of data.
a 23, 18, 27, 14, 25, 19, 20, 26, 17, 24
b 92, 89, 101, 96, 100, 96, 102, 88, 99, 95
c 14, 30, 44, 25, 36, 27, 15, 42, 27, 12, 40, 31, 34, 24
2 The table shows the ages of a group of students on an ‘Outward Bound’ course at a Youth Hostel.
a How many students were on the Age 14 15 16 17 18 19
course?
Number of students 2 3 8 5 6 1
b Write down the modal age of the
students.
c What is the range of their ages?
3 a Fred played 20 games of cricket last season. His batting average was 5 and his range of scores
was 100. However, both his median and his modal scores were 0. Explain.
b Fred’s sister Freda also played 20 games of cricket last season. Her mean score was also 5,
and so were her median and modal score equal to 5. However, the range of her scores was 0.
Explain.
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