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

_______ is the entire group of objects or individuals considered for a survey.

• Sample
• Population
• Random Sample
• Quartile

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

A U.S. senator from Maine wants to find out the opinion of the voters in his state on issues concerning education.  The office of the senator sends out a survey to a random sample of registered voters in Maine.  Is this random sampling?

• Yes
• No

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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

True or False: all samples lead to a good prediction about an entire population.

• True
• False

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

Identify the type of sampling.
Seat numbers are chosen from a hat to identify passengers on an airplane who will be surveyed.

• random sampling
• systematic sampling
• stratified sampling

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

Your school is choosing new school colors. Which group should you ask to get a random sample of student opinion?

• ten 7th grade students
• every tenth student that enters the building in the morning
• twenty 1st and 2nd graders
• every other student going into the principal's office

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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 picks the student in every 5th seat.

• Simple Random
• Systematic 
• Unbiased
• convenience

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

The librarian used the computer system to create a random list of 60 items that are currently checked out. The list showed 25 fiction books, 15 nonfiction books, 12 movies, and 8 music CDs.

Based on this data, what inference can be made about the types of items that the library customers check out?

• half as many CDs are checked out than movies

• More non-fiction books are checked out than fiction books

• customers who check out books don't check out movies

• About twice as many books are checked out than other items

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

Simon wants to find out which shop has the best frozen fruit drink in town. How could Simon conduct a survey with a sample that is representative of the population?

• Simon could stand outside a popular store in town that does not sell frozen fruit drinks and survey every fifth customer about their favorite local favorite fruit drink shop.

• Simon could stand outside a popular store in town that does sell frozen fruit drinks and survey every fifth customer about their favorite local favorite fruit drink shop.

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

There are 900 students in your school. You ask 150 randomly chosen students how much time they spend doing homework on a typical day. The results are shown. Predict the number of students in your school who, on a typical day, spend an hour?

(Show your math work. Use #13 as your guide)

• 36

• 54

• 324

• 2500

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