04/22 Sample vs. Population Practice

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 population

• All Emory hospital patients

• 1000 Emory hospital patients

• 40% cases

• 40 hear disease cases.

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 school surveys all 7th grade boys to determine what to sell in the school store.  This sample is _________.

• Biased
• Unbiased
• Representative
• Peanut butter cups