Data

Data

A collection of information that includes facts, number or measurement.

Collecting data

By observation, surveys, questions, measuring

Qualitative data

Data describing qualities, characteristics or categories.

Continuous data

Data that is measured

Quantitative data

Data where quantities can be counted or measured

Organising data

Graphs, charts and frequency tables are used to organise data

Interpreting data

Making sensible statements about the data shown in graphs

Analyzing data

Mean, mode, median and range are used to measure or analyse data

Histograms

Show grouped discrete data and have no gaps

Column graphs

Show ungrouped discrete data and have gaps between them

Mean

The average of all the scores

Range

The difference between the highest and the lowest scores

Median

The middle value of ordered set of scores

Mode

The score that occurs the most

Outlier

Value far away from any of the other scores in the set of data

Frequency

the number of times an item occurs in a set of data

Discrete data

Data that can be counted

Tally

using marks to record counting