Many companies and organisations collect data to improve their information and products. Skills in collecting data can make this process more efficient and reliable.
dataValues, typically letters or numbers. that is collected can often be from more than one category. For example, data collected on children at a primary school may include their gender as one category and their year group as another. Two-way tables are a way of sorting data so that the frequency of each category can be seen quickly and easily.
For example, 20 people are questioned about whether they have a pet or not. The results can be seen in this two-way table.
From the table, it can be seen that there were 9 girls and 11 boys questioned. 4 girls owned pets and 5 girls did not. 9 boys owned pets and 2 boys did not.
