Samples and Populations

A campaign manager wants to know the political preference of all the voters in California.  Does it make more sense to survey the population or a sample?

• The population
• A sample

A teacher wants to know the favorite ice cream flavor of her 28 students.  Does it make more sense to survey the population or a sample?

• The population
• A sample

Identify which type of sampling method is described:
A member of the population is selected at random, and then others are selected by using a pattern.

• Random
• Systematic
• Convenience
• Self-selected

Identify which type of sampling method is described:
Each member of the population has an equal chance of being selected and a random sample is more likely to be representative of a population than samples that are chosen in other ways.

• Random
• Systematic
• Convenience
• Self-selected

Identify which type of sampling method is described:
Members of the population volunteer to respond to a survey.

• Random
• Systematic
• Convenience
• Self-selected

Identify which type of sampling method is described:
The most-available members of the population are chosen.

• Random
• Systematic
• Convenience
• Self-selected

The student body president is conducting a survey to see if students would like having school uniforms.  She puts all the students' names in a hat and pulls 50 names.  
What type of sampling method did she use?

• systematic
• convenience
• random
• self-selected

A granola bar company wants to know which new granola bar flavor people prefer. The company asks every fifth person to taste each flavor as they enter the grocery store.

What type of sampling method was used?

• systematic

• convenience

• random

A restaurant leaves an optional survey on the dining tables for customers to rate their service.  What type of sampling method was used?

• systematic
• convenience
• random
• self-selected

A car dealership wants to know which new car color customers prefer.  They survey the first ten customers to enter the dealership.  What type of sampling method was used?

• systematic
• convenience
• random
• self-selected