Data & Statistics

2. Data that is collected firsthand by the person or group conducting the investigation.
4. The complete group being studied or investigated.
5. Data that has been collected by someone else, such as from websites, books or newspapers.
7. When the data is unfair or doesn't represent the whole group properly.
8. A survey where data is collected from every member of the population.
11. Data that can be measured or counted numerically (e.g. height, weight, number of pets).
12. A set of written questions designed to collect data from individuals.
14. Choosing a small group from a larger population to collect data.
16. Data that describes qualities or categories (e.g. favourite colour, brand of phone).
17. A smaller group selected from a population to represent it.
18. A test where something is changed to see what effect it has.

1. Numerical data that can only take specific separate values (e.g. number of pets-1, 2, 3).
3. Numerical data that can take any value within a range (e.g. temperature, time, distance).
6. A method of collecting primary data by systematically watching and recording behaviours or events.
9. The study of collecting, organising, analysing and interpreting data to draw conclusions.
10. Data that can be sorted into categories or groups (e.g. colours, types of transport).
13. Data expressed in numbers (e.g. age, height, number of siblings).
15. Information collected for reference, analysis or investigation.
17. A method of collecting primary data by asking people questions directly or via questionnaire.