Experiments and Sampling Methods Review

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

Disneyland often surveys its guests as they exit a restaurant during their visit. The surveyor stands at the restaurant exit, counts the number of people leaving, and surveys every 25th guest.
This is a form of:

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.

Farmer Joe's apple tree farm is set up in 100 rows.  He counts the number of apples produced on every 10th row to estimate the number apples produced on the whole farm.  This is _____________ sampling.  

A teacher puts all her students' names in hat, then selects 3 names from the hat. These students will take a standardized test.

What type of sampling is shown?

What type of Sampling?

At a local community college, five math classes are randomly selected out of 20 and all of the students from each class are interviewed.

The names of 70 contestants are written on 70 cards. The cards are placed in a bag and three names are picked from the bag.

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