A _____ is a smaller piece of the population that represents the entire population.
(1 point)
Responses
bias
bias
interval
interval
sample
sample
population
sample
The correct answer is "sample".
To understand why a sample is a smaller piece of the population that represents the entire population, we need to understand some key concepts.
In statistics, a population refers to the entire group of individuals, objects, or events that you want to study. For example, if you are interested in studying the average height of all adults in a country, the entire adult population of that country would be your population.
However, it is often impractical or impossible to measure or study every single member of a population. This is where a sample comes in. A sample is a smaller subset of the population that is used to make inferences or draw conclusions about the entire population.
To create a representative sample, it's important to use a sampling method that ensures the selection of individuals is unbiased and random. This helps to minimize biases and increase the likelihood that the sample accurately reflects the characteristics of the population.
Once a representative sample is selected, researchers can gather data from that sample and use statistical analysis to make inferences about the entire population. This allows for more efficient and cost-effective research, as studying the entire population would often be logistically challenging and time-consuming.
So, in summary, a sample is a smaller piece of the population that represents the entire population, allowing researchers to make valid conclusions about the larger group based on the data collected from the sample.