Sometimes it is just impractical to collect every piece of data (census) and samples are taken (survey)
lesson notes:04 sample proportions
Sometimes it is just impractical to collect every piece of data (census) and samples are taken (survey)
lesson notes:04 sample proportions
It is more normal to sample rather than attempting to collect all of the population data.
lesson notes:04 sample proportions
Population versus sample, why use data drawn from a sample instead of looking at the whole population?
lesson notes:04 sample proportions
Sampling the data is usually more convenient than trying to use the whole of the population data
lesson notes:04 sample proportions