Statistical Studies and Sampling Methods

For each situation, choose the most appropriate technique for collecting data. Use the technique exactly once.

Compare average class size for math classes and English classes in your high school.

Interview every 10th student who enters the school in the morning.

Assign each car in a dealership a number and then use a random-number table to select the cars to be inspected.

For each situation, choose the most appropriate technique for collecting data. Use the technique exactly once. Decide if computer games are more effective than paper and pencil drills for children learning the multiplication tables.

each item or person in the population is as likely to be chosen as any other

The sample is a part of the population.

A ​ ​ (a)   is a representative portion of the population from which information is gathered.

What type of sampling is shown?

Choosing a sample because it is convenient.

_______ is the entire group of objects or individuals considered for a survey.