Hannah has chosen to collect information using a sample instead of a census.
What are the advantages to doing a sample? Select all that apply.
It is cheaper to conduct.
There will be no sampling bias.
It's more accurate.
It takes less time.
What are the disadvantages to doing a sample? Select all that apply.
It's less accurate.
It takes more time.
It is more expensive to conduct.
There can be sampling bias.
Peter has chosen to collect information using a census instead of a sample.
For each of the following, select whether they are a census or a sample.
For each of the following, select whether they are a census or a sample.
Understand that statistics can be used to gain information about a population by examining a sample of the population; generalizations about a population from a sample are valid only if the sample is representative of that population. Understand that random sampling tends to produce representative samples and support valid inferences.
Use data from a random sample to draw inferences about a population with an unknown characteristic of interest. Generate multiple samples (or simulated samples) of the same size to gauge the variation in estimates or predictions.