ExpertEasy1 markShort Answer
AQA GCSE · Question 05.1 · Statistics
Here are five numbers: 14.2, 15.1, 16.5, 16.7, 18.0. Work out the range.
Here are five numbers: 14.2, 15.1, 16.5, 16.7, 18.0. Work out the range.
How to approach this question
1. Identify the largest number in the list.
2. Identify the smallest number in the list.
3. The range is the difference between the largest and smallest numbers.
4. Subtract the smallest number from the largest number.
Full Answer
3.8
The range of a set of data is the difference between the highest and lowest values.
The five numbers are: 14.2, 15.1, 16.5, 16.7, 18.0.
The largest number is 18.0.
The smallest number is 14.2.
Range = Largest value - Smallest value
Range = 18.0 - 14.2 = 3.8.
Common mistakes
✗ Finding the difference between the first and last numbers in the list without ordering them.
✗ Adding the numbers instead of subtracting.
✗ Misidentifying the largest or smallest number.
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