CCSS.Math.Content.7.SP.A.1

Susan polled 587 people throughout each city in her county.  Each city is the same size.  Is this sample of the residents of cities in the county likely to be biased?

• yes
• no

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CCSS.Math.Content.7.SP.A.1

Identify the sampling.
Every tenth student on the list was chosen to participate in the survey.

• random sampling
• systematic sampling
• stratified sampling

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CCSS.Math.Content.7.SP.A.1

21. How many students are represented by the histogram?  

• Cannot be determined
• 9
• 31
• 35

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CCSS.Math.Content.7.SP.A.1

What is the range in gas mileage for cars?

• 2
• 3
• 4
• 6

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CCSS.Math.Content.7.SP.A.1

At a middle school, the 7th graders will conduct a survey for where to go on a field trip. Which method will result in the least biased decision?

• to randomly ask 8th grade students who went on a field trip last year
• to randomly choose some 7th grade students to select a location
• to ask all 7th grade teachers and administrators for a location
• to ask the student council to choose a location

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CCSS.Math.Content.7.SP.A.1

How many students are between 60 and 63 inches tall?

• 3
• 0
• 12
• 7

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CCSS.Math.Content.7.SP.A.1

A city council member wanted to know how her constituents felt about a planned rezoning. She randomly selected 75 names from the city phone directory and conducted a phone survey.

• The population is everyone listed in the city phone directory; the sample is the 75 people selected.
• The population is residents of the city; the sample is the registered voters in the city.
• The population is registered voters in the city; the sample is everyone listed in the city phone directory.

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CCSS.Math.Content.7.SP.A.1

A safety inspector conducts air quality tests on a randomly selected group of 7 classrooms at an elementary school.

• The population is all classrooms in the district; the sample is the 7 classrooms selected.
• The population is all classrooms in the elementary school; the sample is the 7 classrooms selected.
• The population is all elementary students in the school; the sample is the students in the 7 classrooms selected.

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CCSS.Math.Content.7.SP.A.1

How many students spent over 40 minutes but under 60 minutes studying?

• 22 Students
• 30 Students
• 8 Students
• 5 Students

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CCSS.Math.Content.7.SP.A.1

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 states.

• 3,800 children age 5 - 15

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CCSS.Math.Content.7.SP.A.1