What is the definition of Statistics?
Statistics is the collection, organisation, presentation and analysis of numerical data.
What is Qualitative data?
Qualitative data is not numerical
What is quantitative data?
Quantitative data is when the data is numerical.
What is discrete data?
Discrete data is only certain values for example the amount of people with shoe size 9
What is continous data?
Continuous data is a set of data that can fall within any value of a given range for example length, width etc
What type of data do discrete and continous apply
What is random sampling?
Random sampling gives every member of the population (set of all possible items observed) an equal chance of being picked e.g. picking somnething out of a hat.
What is stratified Sampling?
Stratified Sampling is where the population is split up into strata (sub groups)