AP Statistics Sampling Types and Bias

Source of bias that occurs when an individual chosen for the sample CAN'T be contacted or refuses to cooperate.

I want a representative sample of likely voters. I use a telephone directory to randomly select 200 people. What is the most apparent bias?

I want to estimate the average number of hours SHS students spend playing video games. I sample all of my students. What kind of sampling bias is this?

What is a smaller, representative group drawn from a population?

This occurs when a sample is collected in such a way that some members of the intended population are less likely to be included than others.

What is the branch of mathematics dealing with the collection, organization, analysis, interpretation and presentation of data?

A sampling approach in which entire groups are chosen at random.

A sample of size 𝑛 in which each set of 𝑛 elements has an equal chance of being selected.

The population is divided into subgroups and random samples are taken from each subgroup.

Every 10th person is chosen.