Statistics and Sampling

The entire group studied is called the

• sample
• population

The part of the population being studied is called the

• population
• sample
• random

How many total people took the survey?

• 50
• 150
• 100
• 200

How many students received a score of 94%? 

• 94
• 4
• 1
• 2

What kind of graph is in the illustration?

• Histogram
• Bar Graph
• Pictograph
• Pie Graph

What is the midpoint of the class
10.3-14.8?

• 12.50
• 12.55
• 12.60
• 12.65

A sample should be

• representative of  only middle school students only
• a very large group
• representative of the population
• representative of people who volunteer

Mrs. Trahan samples her class by selecting 5 girls and 7 boys.  This type of sampling is called?

• Stratified
• Systematic
• Simple
• Cluster

Mrs. Trahan samples her class by selecting every third person on her class list.  Which type of sampling method is this?

• Simple
• Systematic
• Stratified
• Cluster

Mrs. Trahan samples her class by picking 10 numbers from her hat and each number is assigned to a student. This is ______________ random sampling.

• Systematic
• Simple
• Stratified
• Cluster