Answer:
<u>Cluster sampling</u>
Explanation:
cluster sampling is also called a simple random sampling.
In this sampling, the researchers, select the variable either by simple random sampling or systematic random sampling. the researcher just not to includes the sub-part of sampling but even can include the main sampling in it. in this sampling, the researcher used a geographical cluster to do the sampling in a population.
For example, if a researcher wants to sample n an academic population:
- firstly the researcher divides the population in sub-part
- then researcher select several clusters depends on his research through a systematic random sampling
- from this sampling, the researcher chooses the population with selected subjects through random sampling.
Answer:
A. Beta coefficient.
Explanation:
This is widely used in regression analysis and in most times in capital asset pricing models (CAPM). The beta coefficient is a measure of an asset's risk and return in relation to a broad market, meaning that it will show, more or less, how the asset or a portfolio of assets will respond as the market moves up or down. It is used in the capital asset pricing model and regression analysis.
It also can be the measurement of how much the value of a particular share has changed in a particular period of time, compared to the average change in the value of shares in the stocks.
