Sample vs. Population and Types of Data

A survey of 976 American households found that 32% of the households own two cars.  Identify the the sample. {hint: a survey of what __)

• All American households

• 976 American households

• 32% of Americans own two cars

• two cars

A survey of 976 American households found that 32% of the households own two cars.  Identify the the population. {hint: which group was targeted... used for the survey}

• All American households

• 976 American households

• 32% of Americans own two cars

• two cars

30% out of 200 Mr. Tran’s students earned A for the final grade average from the last semester.

Identify the sample {a partial part of the large group}

• 200 Forest Park students

• 30% of Forest Park students

• 200 Mr. Tran's students

• 30% of 200 Mr. Tran's students

30% out of 200 Mr. Tran’s students earned A for the final grade average from the last semester.

Identify the population {which group was mentioned in the statement }

• 200 Forest Park students

• 30% of Forest Park students

• 200 Mr. Tran's students

• 30% of 200 Mr. Tran's students

A survey of 1000 patients at Emory hospital found that 40% cases are heart disease treatment.  Identify the sample.

• All Emory hospital patients

• 1000 Emory hospital patients

• 40% cases

• 40 hear disease cases.

Complete the definition:

A _________ consists of all subjects (human or otherwise) that are being studied

• Statistics

• Number

• People

• Population

• Pueblo

Complete the definition:

A _______ is a subset of a population

• sample

• sampel

• people

• statistics

• group

True or False: all samples lead to a good prediction about an entire population.

• True
• False

A toy store owner tracking how much kids spend each month on toys. Which choice best represents a population?

• All of the kids who buy toys.

• 227 wealthy kids.

• 228 boys age 7 - 15

• 235 kids from age 10 to 15.

Before a nation-wide election, a polling place was trying to see who would win. Which choice best represents a sample?

• A selection of voters over age 50.

• A selection of male voters.

• A selection of voters of different ages.

• All voters.