statistic vocabulary

statistic vocabulary

1. Simple random sample: Every subset of a specified size n form the population has an equal chance of being selected

2. Stratified random sample: When you use the population and divide it in groups and then randomly chose a group

3. Cluster random sample: the population is divided into subgroups like families all members of cluster selected are surveyed

4. Systematic: every certain number the member is selected from a list of a population members. For example every 3 person

5. Random (each member of population has an equal chance of being selected)

6. Norandom (when the population dont had the same chances for been selected)