Populations and Samples

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

• 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.7.SP.A.1

CCSS.7.SP.A.2

A school principal wants to see which subject the 695 students in his school liked best. Which choice BEST represents a representative sample?

• The girls in the school.

• 1 classroom for each grade

• All the students in the school.

• The students making a B in math.

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

A gaming website wanted to find out which console its visitors owned. Which choice BEST represents the population in this situation?

• Visitors with an 'e' in their user name.

• Visitors to the 3DS section.

• Visitors over 22.

• All the website visitors.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

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 random kids of all ages

• 292 boys ages 7-15

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

A mayor wanted to see if the people in his town thought he was doing a good job. Which choice BEST represents the population in this scenario?

• The residents of 4 different neighborhoods.

• The residents of the town.

• 442 voters age 21 to 30

• Local business owners

A beverage company wanted to see if people in the United States like their new logo.  Which choice BEST represents a sample?

• A selection of shoppers from different states.
• Every person in the United States.
• 153 male and female employees
• A selection of logo artists.

Josie threw a handful of identically shaped buttons into the air, then collected the 27 buttons that landed in a target on the floor.  Is this a random sample of the buttons?

• yes
• no

Leslie surveyed the 9 youngest students in the elementary school.  Is this sample of the students in the school likely to be representative?

• yes
• no

A teacher examined 17 random tests from each of her math classes. Each class had the same number of tests. Is this sample of the tests likely to be biased?

• yes

• no

Colton polled 22 people at the town senior center.  Is this a random sample of the town residents?

• yes
• no