Population and Statistics Review

What is the mode of the following data set:
1, 1, 1, 2, 5, 9

• 1

• 2

• 5

• 9

Which of the following is an example of a statistical question?

• What color shirt are you wearing?

• How many dogs do you have?

• What are the favorite ice cream flavors of CMS 6th graders?

• Is it a nice day outside?

What is the MODE of a data set?

• The middle value

• The number that occurs most frequently

• The average

• The difference between the max and min values

What is the MEDIAN of a data set?

• The middle value

• The number that occurs most frequently

• The average

• The difference between the max and min values

The entire pool; the total set of people/objects that can be studied

• population

• sample

• datum

• probability

There are 45 people working in a particular building. A survey on dietary habits is conducted by giving every third person in the building a questionnaire to fill out. From the questionnaire, the researcher obtains a score on the dietary habits of the 15 people.What is the number of members in the population?

Mathematical Equivalence

ON

The entire group studied.

• sample

• population

A beverage company wanted to see if people in the United States liked their new logo.
Which choice best represents a population?

• A selection of logo artists.

• Every person in the United States.

• A selection of shoppers from different shoppers from different states.

• 3,800 children age 5-15

The entire group studied is called the

• sample

• population

Population or Sample?

A factory overseer selects 40 threaded rods at random from those produced that week at the factory, then she tests their tensile strength.

• Population

• Sample