Population and Samples

Front

What is the definition of a population in statistics?

Back

The entire group of objects or individuals considered for a survey.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is a sample in statistics?

Back

A part of a group being surveyed.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

Identify the population: A scientist studies a herd of mule deer to learn about their dietary habits.

Back

Mule deer.

Front

Identify the population: A computer manufacturer surveys its customers who purchased laptop computers.

Back

Customers who purchased laptop computers.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

If a store manager selects 30 cartons of eggs and finds 4 cracked, how many cracked cartons can she expect in 105 total cartons?

Back

14 cartons.

Tags

CCSS.7.SP.A.2

Front

What is the difference between a population and a sample?

Back

A population includes all members of a defined group, while a sample is a subset of that group.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is a random sample?

Back

A sample that is chosen randomly from the population, ensuring every individual has an equal chance of being selected.

Tags

CCSS.HSS.IC.B.3

Front

Why is it important to have a representative sample?

Back

To ensure that the results of a survey or study can be generalized to the entire population.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is sampling bias?

Back

A bias that occurs when the sample is not representative of the population.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is the purpose of conducting surveys?

Back

To gather information and insights from a specific group to make informed decisions.