CCSS.Math.Content.HSS.IC.B.3

Roberto wants to know the favorite sport of adults in his hometown.  He surveys 50 adults at a baseball game.  Is this random or biased sampling?

• Random
• Biased

Tags

CCSS.Math.Content.HSS.IC.A.1

CCSS.Math.Content.HSS.IC.B.3

Determine the type of sampling used in the following scenario: Farmer Joe randomly picks 100 trees using a random number generator to estimate the number of apples produced by his apple trees.  This is ______________ sampling.

• Simple
• Stratified
• Cluster
• Systematic

Tags

CCSS.Math.Content.HSS.IC.B.3

6

• A

• B

• C

• D

• E

Tags

CCSS.Math.Content.HSS.IC.B.3

An experiment is...

• a planned activity whose results yield a set of data

• a numerical value that summarizes all of the data of an entire population

• the set of values collected from the variable from each of the elements that belong to the sample

• A numerical value summarizing the sample data

Tags

CCSS.Math.Content.HSS.IC.B.3

Marianne wanted to know students' opinion on the new schedule at school. She survey's the first 30 students who come into her class.

• Convenience Sampling

• Systematic Random Sampling

• Simple Random Sampling

• Volunteer response

Tags

CCSS.Math.Content.HSS.IC.B.3

What is the difference between an observational study and an experiment?

• Observational studies compare data.

• Experiments involve active data production.

• Experiments involve having multiple treatments

• Observational studies have subjects and treatments.

Tags

CCSS.Math.Content.HSS.IC.B.3

Why do we want our experiments to have random elements in them?

• To reduce variability

• To increase variability

• To reduce bias

• To increase bias

Tags

CCSS.Math.Content.HSS.IC.B.3

Suppose that in your health class you read two studies on the relationship between eating breakfast and success in school for elementary school children. A student decided to organize a google survey that his classmates would take at the start of class on Wednesday, asking them about their breakfast that morning.

What type of study is described?

• Survey

• Experimental Study

• Observational Study

Tags

CCSS.Math.Content.HSS.IC.B.3

Determine if the following study is biased.

A public library asked every 10th person who entered to name the type of book they were getting.

• A. Biased

• B. Unbiased

Tags

CCSS.Math.Content.HSS.IC.B.3

Determine if the following study is biased.

To see who has a computer at home the front office asks 10 randomly chosen students from each grade.

• Biased

• Unbiased

Tags

CCSS.Math.Content.HSS.IC.A.1

CCSS.Math.Content.HSS.IC.B.3