Question

Discuss and explain why sampling permits us to make inferences about populations.

Answer 1

Sampling permits us to make inferences about populations because it is often impractical and expensive to examine an entire population. By taking a representative sample, we can make generalizations about the population based on the characteristics of the sample.

Step-by-step explanation:

Sampling permits us to make inferences about populations because it is often impractical and expensive to examine an entire population. By taking a representative sample, we can make generalizations about the population based on the characteristics of the sample. For example, if we wanted to know the average weight of all high school students in a city, it would be unrealistic to measure the weight of every student. Instead, we can select a random sample of students and calculate the average weight based on that sample.

Sampling is also useful in situations where it may be impossible to measure the entire population. For example, if we wanted to estimate the number of fish in a lake, it would be impossible to count every single fish. By taking a sample of fish and using statistical methods, we can estimate the total population of fish in the lake.

Additionally, sampling allows us to analyze and understand the variability within a population. By examining a sample, we can observe the range of values and patterns, which can inform our inferences about the entire population.

Answer 2

The end result of sampling is to get a representative sample, or a small collection of units or cases from a much larger collection or population. In theory, the researcher can study the smaller group and produce accurate generalizations about the larger group. Researchers focus on the specific techniques that will yield highly representative samples much so in similarities as a population. Quantitative researchers tend to use a type of sampling based on theories of probability from mathematics, called probability sampling.Sampling is the group of individuals who participate in your study. These are the individuals who will participate in a qualitative study. People who could have been participants in your study but did not actually participate are not considered part of your sample.