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

A teacher decides to survey the students in her classes to find out their opinion on the new menu in the cafeteria.  Is this biased or unbiased?

• Biased
• Unbiased

Tags

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

Tags

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

What would be the population in this example?
Surveyors in a mall choose shoppers to ask about products they prefer.

• the surveyors
• all shoppers in the mall
• the shoppers who were asked their preferences

Tags

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

A survey company was trying to see if people in a state thought the pollution was too high.  Which choice BEST represents a population?

• A selection of people from each neighborhood in the state.
• A selection of people who live in small towns.
• Every person in the state.
• A selection of people who live in dirty neighborhoods.

Tags

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

What is the mode of the trout weight?

• 450
• 450.5
• 452
• 460

Tags

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

I surveyed 100 people at a grocery store by selecting every 3rd person that entered, does this sample represent the local population?

• Yes, it is random and unbiased.

• Yes, it is random and biased.

• No, while it is random, it is also biased.

• No, while it is random, it is also unbiased.

Tags

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

Biased or Random?

Mr. Goldsmith wants to determine who the best teacher in all of Menifee County is, so he asks every 7th grader who their favorite teacher is.

• Biased

• Random

Tags

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

Biased or Random?

John wants to find out what the favorite soda flavor is at Menifee County. He decides to ask all the students in Mr. Goldsmith's class as a sample group.

• Biased

• Random

Tags

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.

Tags

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

How many students sent more than 29 text messages?

• 45

• 25

• 95

• 199

Tags

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