Samples

Zoie completes a report by asking 70 students across campus. She found that 48% of CTMS students do not wash their hands after using the bathroom. What is the population of her survey?

• the bathroom
• CTMS students
• 48% of students 

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

According to a random telephone survey of 200 adults, 75% of all working adults in the U.S. are satisfied with their current job. What is the population in this survey?

• 200 adults
• adults in the U.S.
• 75% of adults

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

Ms. Wilson concludes that 85% of the students in the school have at least one pet after she conducts a survey of 25 students in her class. Is this survey a census or a sample?

• census
• sample
• not enough information to tell
• both

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Manny wants to know how many students at CTMS enjoy solving math problems. What is the best sampling method?

• ask for 20 volunteers to discuss whether they enjoy solving math problems
• ask the last 20 people to arrive at CTMS 
• Randomly ask 2 students in the hallway
• Ask every 20th student that walks into school

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Darrien surveys 60 of the actors theater class. He concludes that 8 out of 15 actors have previous acting experience. What is the sample size?

• 60
• 8
• 15
• 53

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

A recent survey of 800 seventh graders from across the state shows 4 out of 10 like to play paper football. How many students said they like to play paper football?

• 40 students
• 200 students 
• 320 students
• 8,000 students

Tags

CCSS.6.NS.B.2

CCSS.6.RP.A.1

CCSS.6.RP.A.3

The number of pages that Carolyn wrote in her journal each day from Monday to Friday is shown below: 
9, 8, 12, 6, 10
What is the mean number of pages she wrote per day?

• 5
• 6
• 9
• 11

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5

What is the mode?

• The value that occurs the most often in a data set
• The middle number in an ordered set of data
• The sum of all the numbers in a data set divided by the size
• The sum of the between the greatest and the least elements, divided by two

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

What is the mean?

• The value that occurs the most often in a data set
• The middle number in an ordered set of data
• The sum of all the numbers in a data set divided by the size
• The sum of the between the greatest and the least elements, divided by two

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5

What is the median?

• The value that occurs the most often in a data set
• The middle number in an ordered set of data
• The sum of all the numbers in a data set divided by the size
• The sum of the between the greatest and the least elements, divided by two

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5