Averages are used in everyday life to give us information about a set of numerical data, give an overview of the values seen and tell us the most common outcome. Range measures the spread of the data.
A science project about flowers involves pupils counting the number of petals on different flowers in their gardens. One pupil's results are as follows: 8, 3, 11, 5, 6, 9, 8, 4, 8, 12, 4
What is the mode number of petals on each flower?
Some friends are comparing the number of footballs they have at home. They have: 1, 0, 4, 1, 3, 2, 6, 2, 1
What is the median number of footballs?
The 5 highest summits in the Brecon Beacons are as follows:
886 m, 873m, 795m, 769 m and 754 m
What is the mean height of these summits, to the nearest metre?
What is the mean number of siblings in a class at school?
Using the mean, compare the maths results of classes X1 and Y1. Which class performed better?
X1 performed better
Y1 performed better
You can’t tell
Questions 6 – 10 are for Intermediate and Higher tier
Find the mean, mode and median of a group of people's shoe sizes and determine which one is the least representative.
1, 5, 4, 7, 1, 12, 8, 6, 1, 5
20 dogs compete in an agility competition. Before they are allowed to compete they are weighed. The results are as shown:
What is the modal class?
19 – 24
5 – 9
What is the median number of calories eaten by this group of friends?
20 babies are born in a hospital in one day. What is the mean weight of the babies?
Use the range and median to compare the results of classes X1 and Y1. Which class performed better?
They performed the same