Population Inferences

Mr. Cardarella wants to know section 702's favorite food. He picks 10 students in 702 to ask.

What is the sample?

• All students at Commodore

• All students in section 702

• The 10 students Mr. Cardarella picks

• All students in 7th grade

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Mr. Cardarella wants to know section 702's favorite food. He picks 10 students in 702 to ask.

What is the population?

• All students at Commodore

• All students in section 702

• The 10 students Mr. Cardarella picks

• All students in 7th grade

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Ms. Cassermere wants to know 7th grade students' favorite tv show. She picks 20 students to ask.

What is the population?

• All students at Commodore

• All students in 701

• The 20 students who get picked

• All students in 7th grade

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Ms. Cassermere wants to know 7th grade students' favorite tv show. She picks 20 students to ask.

What is the sample?

• All students at Commodore

• All students in 701

• The 20 students who get picked

• All students in 7th grade

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

• 15

• 27

• 45

• 75

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Anthony opened a new store and wants to conduct a survey to determine the best store hours. Which is the best representative sample?

• A group of randomly selected people who come to the store in one week.

• A group of randomly selected people who visit his website on one night.

• Every person he meets at his health club one night.

• The first 20 people who walk into his store one day.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

100 second graders were asked to do a book report about one of these four zoo animals.  The number of students who chose each animal is shown in the table.  If 250 second graders had to choose of of the four animals, predict how many would choose to write about a giraffe.

• 60 students
• 50 students
• 40 students
• 30 students

Tags

CCSS.5.OA.B.3

150 people were polled on their favorite sport.  Based on the table, if you asked only 25 people what their favorite sport is, how many would say soccer is their favorite sport?

• 5 people
• 6 people
• 8 people
• 10 people

Tags

CCSS.7.RP.A.3

Maria collects data from a random sample of 7th graders in her school and finds that 16 out of 20 7th graders participate in after-school activities. How many students should Maria expect to participate in after-school activities if 240 total 7th graders attend Maria's school? Write the numerical answer only.

Tags

CCSS.7.RP.A.3

A movie theater randomly samples the types of admission tickets sold on Friday in the afternoon and the evening. If 400 tickets are sold on a Friday afternoon, use your inference and proportional reasoning skills to determine how many of those 400 tickets would be adult tickets. Type your numerical answer only.