Central Limit Theorem: A sampling distribution of the mean is approximately normally distributed if the sample size is sufficiently large. This is true no matter what the population distribution is.

In statistics, a population refers to the entire group of individuals or items that we are interested in studying. However, collecting data from the whole population is often impractical due to size, ...

- An **element** is the entry on which data are collected. - A **population** is the collection of all the elements of interest. - A **sample** is a subset of the population. - A **sampling frame** is ...