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.

Marianne wanted to know students' opinion on the new schedule at school. She survey's the first 30 students who come into her class.

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.

She selects the five closest to her desk.

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.

She picks the student in every 5th seat.

An independent research company wants to go door to door to survey people in the city of Fontana. The company decides to number all blocks within the city limit, randomly choose 1 block and survey all households on that block.

This is an example of:

A teacher hands out an index card and asks ALL of her students to write down the following information: age, height (in inches), and what grade they are in.

Which of the following best describes her method of data collection?

A teacher wants to know how well her students are doing on a topic. She randomly picks one class to survey.

A teacher splits her classes up by period. She then randomly picks 3 students from each period to do a survey.