Estimating a Population Proportion

• A

• B

• C

• D

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A school randomly chose ten English teachers and asked them which type of juice their students would prefer. Which reason best shows why this sample is biased?

• The sample didn't include students.
• The sample is too small.
• The sample can only be accurate if each teacher is included in the sample

Tags

CCSS.RL.11-12.6

A school has five 7th-grade homeroom classes. One homeroom class was given a survey. Which statement best describes the scope of the survey results?

• The results can be used to describe what most students aged 10 to

  12 think.

• The results can be used to describe what 7th graders across the

  country think.

• The results can be used to describe what the 7th graders at this

  school think.

• The results can be used to describe what most 8th graders thought

  last year when they were in 7th grade.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A hospital wants to conduct a survey to find out what patients think about the quality of medical services provided by its doctors and staff. Which of these samples would give it the best results?

• taking the opinion of the entire staff in the hospital

• taking the opinion of patients in the cardiology wing of the hospital

• taking the opinion of all the doctors who treat patients in the

  hospital

• taking the opinion of every fifth patient who is discharged from the

  hospital

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

There are three dots above 0.2. What does each dot represent in terms of this scenario? 

• 2 students out of 10 said they like pop music.

• 0.2 students out of 10 said they like pop music.

• For every 2 students who took the survey there are 10 students in the population who like pop music.

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CCSS.7.SP.A.2

What does each dot on the dot plot represent in general terms?

• Each dot represents the survey results from one student who conducts the survey.

• Each dot represents one student who answers the survey.

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CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

Based on the dot plot, where would a student most likely say the dots are clustered?

• Between 0.3 and 0.5

• Only at 0.3

• Between 0.4 and 0.5

• Between 0.1 and 0.7

Tags

CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2

Based on the dot plot, what would the most likely estimate of the population proportion to be? (Round to the nearest tenth.)

• 0.6

• 0.4

• 0.3

• 0.5

Tags

CCSS.7.SP.A.2