Analyse

Data analysis is the process of transforming raw data into usable information...

Directorate, O. S. (2013). OECD Glossary of Statistical Terms - Data analysis Definition. Retrieved from https://stats.oecd.org/glossary/detail.asp?ID=2973

Bias

An effect which deprives a statistical result of representativeness by systematically distorting it, as distinct from a random error which may distort on any one occasion but balances out on the average.

Directorate, O. S. (n.d.). OECD Glossary of Statistical Terms - Bias Definition. Retrieved from https://stats.oecd.org/glossary/detail.asp?ID=3605

Categorical data

Data that is descriptive e.g. Make of car, colour of eyes

 

Census

A census is a study of every unit, everyone or everything, in a population.

Statistical Language - Statistical Language Glossary. (n.d.). Retrieved from https://www.abs.gov.au/websitedbs/D3310114.nsf/hom e/statistical language - statistical language glossary

Clustered

Grouped close together

 

Collection

Methods of gathering data to be analysed

 

Complimentary events

 

Continuous data (variable)

A continuous variable is a numeric variable. Observations can take any value between a certain set of real numbers...Examples of continuous variables include height, time, age, and temperature.

Statistical Language - Statistical Language Glossary. (n.d.). Retrieved from https://www.abs.gov.au/websitedbs/D3310114.nsf/hom e/statistical language - statistical language glossary

Data

Data are measurements or observations that are collected as a source of information.

Statistical Language - Statistical Language Glossary. (n.d.). Retrieved from https://www.abs.gov.au/websitedbs/D3310114.nsf/hom e/statistical language - statistical language glossary

Discrete data (variable)

A discrete variable is a numerical variable. Observations can take a value based on a count from a set of distinct whole values.

A discrete variable cannot take the value of a fraction between one value and the next closest value. Examples of discrete variables include the number of registered cars, number of business locations, and number of children in a family, all of of which measured as whole units (i.e. 1, 2, 3 cars).

Statistical Language - Statistical Language Glossary. (n.d.). Retrieved from https://www.abs.gov.au/websitedbs/D3310114.nsf/hom e/statistical language - statistical language glossary

Dot plot

A Dot Plot is a graphical display of data using dots.

Dot Plots. (n.d.). Retrieved from https://www.mathsisfun.com/data/dot-plots.html

   

Frequency

The number of times the outcome occurs

 

Grouped data

Data grouped into intervals e.g. 10kg - 15kg

 

Histogram

A bar chart for continuous data where the bars touch each other

 

Information

Data

 

Location

Where a survey is conducted

 

Mean

Sum of all of the scores/number of scores

 

Median

The middle score

 

Mode

The score that occurs the most in a set of data

 

Organisation

Presenting data in a clear and precise form

 

Outlier

A score that is well outside and different from the other scores

   

Polygon

An enclosed 2D shape with straight lines only as edges

 

Population sample

A part of the population 

 

Probability event outcome

A possible outcome of a probability experiment

 

Quantitative data

Data that is numerical - e.g height, foot size

 

Random

An event or sample that is selected without conscious bias

 

Range

The highest - lowest score

 

Scatter diagram

A 2D graph with two measurements taken from one person/object

 

Score

A data value

 

Spread

The distribution of the data

 

Stem-and-leaf

A graph showing the distribution of the data using the scores themselves

 

Tally

Adding up the number of data values (e.g. how many cars were red)