STATISTICAL DATA

Discrete Data

Which is given in whole numbers e.g.

16 elephants

1093 tonnes of wheat

Continuous Data

Facts and figures which can take any value e.g.

1. Fractions e.g.23 ¼
2. Decimals e.g. 6.20 mm
3. Values within range e.g. 0-30◦c

Grouped Data

Which is non precise/exact but values range in groups e.g.

Sources of Statistical Data

1. Primary Sources

-People or places which have 1st hand or original information.

The information can be collected by observation, measuring, counting, photographing etc.

Advantages

1. Give first hand information
2. The information cant be got from other sources

Secondary sources

-Materials in which information collected by others was stored e.g. text books, reference books, etc.