Sample & Populations/ Data

5. says that two ratios (or fractions) are equal.
6. information that describes something.
8. a conclusion reached on the basis of evidence and reasoning.
10. a collection of facts, such as numbers, words, measurements, observations or even just descriptions of things.
11. the whole group that is being studied.
12. A selection that is chosen randomly (purely by chance, with no predictability).
13. data that can be counted (called "discrete data") or measured (called "continuous data")

1. a question that can be answered by collecting data that vary
2. a selection taken from a larger group (the "population") that will, hopefully, let you find out things about the larger group.
3. a special type of diagram showing Quartiles 1, 2 and 3 (where the data can be split into quarters) in a box, with lines extending to the lowest and highest values
4. showing no prejudice for or against something; impartial.
7. a systematic (built-in) error which makes all values wrong by a certain amount.
9. a type of non-probability sampling that involves the sample being drawn from that part of the population that is close to hand.
10. a graphical display of data using dots