Question: Define the following terms : Statistics Parameter statistic Random variable Population Sample Sampling frame Sampling Unit Sampling

Here are the definitions for the terms:

1. Statistics: The science of collecting, organizing, analyzing, interpreting, and presenting data. It involves making inferences about a population based on sample data.
2. Parameter: A numerical characteristic that describes a population. It is typically a fixed value, though often unknown. Examples include the population mean (μ) or population standard deviation (σ).
3. Statistic: A numerical characteristic that describes a sample. It is calculated from sample data and is used to estimate a population parameter. Examples include the sample mean (x̄) or sample standard deviation (s).
4. Random variable: A variable whose value is a numerical outcome of a random phenomenon. Its value is determined by chance.
5. Population: The entire group of individuals, objects, or events about which information is desired. It is the complete set of all possible observations.
6. Sample: A subset or a smaller, representative group selected from a population. Data is collected from the sample to make inferences about the larger population.
7. Sampling frame: A list of all the sampling units in the population from which a sample will be drawn. It serves as the basis for selecting the sample.
8. Sampling Unit: The individual element or group of elements that is selected in a sample. It is the basic unit of observation or measurement in a study.
9. Sampling: The process or technique of selecting a subset (sample) of individuals or items from a larger population to make observations and draw conclusions about the entire population.