Math 3 Sampling Methods

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

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

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:

You want to determine whether students in your school like the new design of the school’s website.  Identify the type of sample described.

  You randomly select two students from each classroom. 

You want to determine whether the people in your neighborhood like the new social medial website that provides neighborhood updates.  Identify the type of sample described.

You ask all of the neighbors on the block where you reside. 

A principal wants to know how teachers feel about changes to their schedule. He decides to ask a sample of 20 teachers. Classify each sampling method.

Randomly choose 2 teachers from each of the school’s 10 departments of various sizes.