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Find the Median

In this worksheet, students find the median from a small data set.

'Find the Median' worksheet

Key stage:  KS 4

GCSE Subjects:   Maths

GCSE Boards:   AQA, Eduqas, Pearson Edexcel, OCR,

Curriculum topic:   Statistics

Curriculum subtopic:   Statistics Analysing Data

Difficulty level:  

Worksheet Overview

When you have a whole load of information, it can be quite difficult to deal with.

For example, If I asked whether Boys were taller than Girls, you would have to do something to the data to be able to answer the question.

To do this we take averages.


What is an average?

An average is just one piece of information that represents all the other information in a data set.


What are the averages?

There are three averages. Mean, Median and Mode.

Each one has advantages and disadvantages, in this worksheet we are going to look at finding the median


How do we find the mean?

To find the mean, we put all the data in order and find out what is in the middle.

Example 1: Find the median of 2,3,5,6,1,2,3,4,5,4,6

Step 1: Put all the data in order


Step 2: Find the number in the middle

To do this, the easiest way is to cross of one from each end until we get to the middle.


This means the median is 4


Example 2: Find the median of 51,28,42,31,43,57

Step 1: Put all the data in order


Step 2: Find the number in the middle

If we do what we did before, we don't get a number in the middle, we get two!


If this happens, we find out the number half way between these two numbers in the middle/

Our median here is 42.5

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