Statistics Definitions

3. A controlled study in which the researcher attempts to understand cause-and-effect relationships.
5. Variables that describe a measurement and can therefore include decimals and fractions.
7. Most Frequently Occurring.
10. When some members of the population are inadequately represented in the sample.
11. Variable that has all the properties of an interval variable, and also has a clear definition of 0.
13. Variables described by numbers.

1. Graph where individual values are represented in descending order by bars
2. The ‘middle value’ after the data has been put in order from smallest to biggest
4. Variables with an order, e.g. small, medium, big.
6. Sampling using every kth item from a population.
8. Asks questions of a sample of the population.
9. variables without any order e.g. blue, green, yellow.
12. Asks questions of everybody in the population.
14. The difference between the highest score and the lowest score.