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

Ana wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results?

• thirty students who are often tardy
• thirty students who are rarely tardy
• thirty of her friends
• thirty randomly selected students from her school

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

_________ is a sample in which each individual or object in the entire population has an equal chance of being selected.

• Sample
• Population
• Random Sample
• Quartile

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

A toy store owner is tracking how much kids spend each month on toys.  Which choice BEST represents a sample?

• All of the kids who buy toys.
• 275 rich kids
• 200 kids from ages 10 to 15
• 292 boys ages 7-15

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

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.
She selects the five closest to her desk.

• simple random
• representative
• Convenience
• Systematic 

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

Which age group liked Action movies the least?

• 18-25
• 25-49
• 50+
• 238

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

The histogram shows the birth weights of 100 new born babies.  How many babies weighed 8 pounds or more?

• 22
• 23
• 30
• 45

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

Marianne wanted to know students' opinion on the new schedule at school. She places all students' names in a container and picks out 20 to survey. 

• Convenience Sampling
• Systematic Sampling
• Random Sampling
• Volunteer response

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

A travel club has 3,000 members.  A random sample of 50 of the club members found that 12 people like mountain vacations best.  Which statement is NOT supported by the sample data? 

• Twenty-four percent of those sampled say they like mountain vacations best.  
• An estimated 720 club members would likely say they enjoy mountain vacations best. 
• Almost one-quarter of club members would likely say they enjoy mountain vacations best. 
• More than 2,500 club members would likely say they prefer other vacations over mountain vacations. 

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

Biased or Random?

Jameson and Brevon want to determine the most popular Basketball player in all of Menifee County so they poll everyone at lunch.

• Biased

• Random

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

Zoie completes a report by asking 70 students across campus. She found that 48% of CTMS students do not wash their hands after using the bathroom. What is the population of her survey?

• the bathroom
• CTMS students
• 48% of students 

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