When carrying out an investigation, you will need to collect and record data from which you can draw conclusions. Learn about different ways of collecting, recording, organising and interpreting data.

You can use a **two-way table** to show two sets of information.

Aled carried out a survey to see how many of his classmates are left-handed. His results are shown in the table below:

This is an example of a two-way table and it is used to show two different features in a survey.

In this case it shows:

- boys and girls
- left-handed or right-handed

You can find out lots of information from this table. For example, you can see that there are \({2}\) left-handed boys in the class. You can also see that there are \({13}\) girls in the class (\({1}\) left-handed and \({12}\) right-handed).

- Question
Q1. How many right-handed children are there in the class?

Q2. How many children are there in total?

A1. There are \({14}\) right-handed boys and \({12}\) right-handed girls, so \(14 + 12 = 26\) in total.

A2. There are \({29}\) children in total.

This is the total of all the numbers in the table.