The Mean Is Defined as the Sum of a Series

question 16

True/False

The mean is defined as the sum of a series of observations, divided by the number of observations of an array.

---

Definitions:

Cluster Sampling

A sampling technique where the researcher divides the population into separate groups, or "clusters," and a sample of these clusters is then selected for study.

Stratified Random

This refers to a sampling method where the population is divided into subgroups (strata) that share similar characteristics, and a random sample is then drawn from each stratum.

Achievement Tests

Standardized tests designed to assess how much knowledge and skills a person has acquired in a specified area.

Haphazard Sampling

A non-systematic sampling method where items or individuals are selected randomly in an unplanned way, without any specific pattern.