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

Tom surveys 40 moviegoers by randomly choosing their names.  What type of sampling method is this?

• Random
• Convenience
• Biased

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

Elisa surveyed people in her neighborhood about whether they would like to have a swimming pool in their community park. Of those who responded, 65% were in favor of having a swimming pool. Based on these results, which statement could be true?

• Elisa surveyed 10 people, and 6 people were in favor of having a swimming pool.
• Elisa surveyed 20 people, and 13 people were in favor of having a swimming pool.
• Elisa surveyed 65 people, and 10 people were in favor of having a swimming pool.
• Elisa surveyed 13 people, and 5 people were in favor of having a swimming pool.

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

A wildlife reserve has a population of 120 elephants. A group of researchers trapped 42 elephants and recorded their vital statistics. Of the trapped elephants, 35 were female. If that rate holds true for the entire population of 120 elephants, how many female elephants are on the wildlife reserve?

• 100
• 120
• 132
• 216

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

The part of the population being studied

• population
• sample
• random

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

What is the range in gas mileage for SUVs?

• 2
• 3
• 4
• 6

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

What is the mode of the trout weight?

• 450
• 450.5
• 452
• 460

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

What is the sample and population?
Number of McDonald's in a 25 miles² area of Maui...

• Population:  Number of McDonald's
  Sample:  25 miles² of Maui
• Population: 25 miles² of Maui
  Sample:  Number of McDonald's
• Population:  25 miles²
  Sample:  Maui
• Population:  Maui
  Sample:  Number of McDonald's

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

1. A sample in which every person, object, or event has an equal chance of being selected.

• A. Random sample.
• B. Biased sample.

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

The manager of a movie theater randomly surveyed 50 people who entered the movie theater on Friday. The results of the survey are shown in the table. Based on the results in the table, which statement about a person who will go to this theater next Friday is true?

• The person is three times as likely to prefer comedy as horror.

• The person is twice as likely to prefer drama as horror.

• The person is less likely to prefer horror or drama than action.

• The person is more likely to prefer horror or comedy than action or drama.

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

Which interval has 400 employees?

• 33-43
• 0-10
• 77-87
• 66-76

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