Bibliography
For Research
Numerical data
http://study.com/academy/lesson/what-is-numerical-data-definition-examples-quiz.html
https://www.youtube.com/watch?v=HpL8fE8TuXg
Quantitative V. Qualitative
http://www.shmoop.com/probability-statistics/qualitative-quantitative-data.html
http://www.abs.gov.au/websitedbs/a3121120.nsf/home/statistical+language+-+quantitative+and+qualitative+data
For the different types of sampling
http://freespace.virgin.net/liam.mullan/maths/samples.html
For what is a census
http://support.minitab.com/en-us/minitab/17/topic-library/basic-statistics-and-graphs/introductory-concepts/basic-concepts/sample-and-population/
Picture of a cluster
https://www.mathsisfun.com/definitions/cluster.html
For the ABS
http://www.abs.gov.au/
http://study.com/academy/lesson/what-is-numerical-data-definition-examples-quiz.html
https://www.youtube.com/watch?v=HpL8fE8TuXg
Quantitative V. Qualitative
http://www.shmoop.com/probability-statistics/qualitative-quantitative-data.html
http://www.abs.gov.au/websitedbs/a3121120.nsf/home/statistical+language+-+quantitative+and+qualitative+data
For the different types of sampling
http://freespace.virgin.net/liam.mullan/maths/samples.html
For what is a census
http://support.minitab.com/en-us/minitab/17/topic-library/basic-statistics-and-graphs/introductory-concepts/basic-concepts/sample-and-population/
Picture of a cluster
https://www.mathsisfun.com/definitions/cluster.html
For the ABS
http://www.abs.gov.au/