Populations and Samples

A manager samples receipts of every fifth person in line. Out of 50 people, 4 had a mispriced item. If 600 people go to the store each day, how many can you expect to have a mispriced item?

• 50 people

• 80 people

• 48 people

• 12 people

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

CCSS.HSS.MD.A.2

CCSS.HSS.MD.A.3

CCSS.HSS.MD.B.5

A random sample of dogs at different animal shelters shows that 12 of 60 dogs are puppies. The cities shelters collectively house 1,200 dogs each year. Estimate how many are puppies.

• 50 puppies

• 240 puppies

• 20 puppies

• 600 puppies

Tags

CCSS.6.RP.A.3B

The Magic Kingdom theme park has many attractions, one of which is Space Mountain. Are the people who ride Space Mountain the population, or a sample, of the theme park? Explain.

• Population. They are all the people at the theme park.

• Sample. They are a subset of all the people at the theme park.

• Both population and sample. They are all the people at the theme park

• Neither population nor sample. They are not the people at the theme park.

Tags

CCSS.HSS.IC.A.1

When a sample does not accurately represent the population it is a:

• Unbiased sample

• Biased sample

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

A school survey asked 50 girls to identify their favorite items on the school cafeteria menu. This sample is ________________.

• Biased

• Unbiased

• Representative

• Numerical

Determine whether the sample is biased.

Dr. Glencross sends out questionaires to all of the students to find out what kind of music students prefer at dances.

• biased

• not biased

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

A survey was carried out among students in a middle school to decide whether to buy a new set of instruments for the marching band or build a second scoreboard for the football field. Which survey method will best represent the views of the entire school?

• ask 50 students whose names are randomly picked from the school register

• ask all students who attended the last school football game

• ask 40 randomly chosen students who signed up for music class this year

• Ask only those students who don't play football and are not in band.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

A school surveys all 7th grade boys to determine what to sell in the school store.  This sample is _________.

• Biased
• Unbiased
• Representative
• Peanut butter cups

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

The choir director in a high school wants to know how the students in the school feel about singing. If the director selects 100 girls and 100 boys to complete a survey, which method will result in a biased sample?

• The students will be selected from the choir
• The students will be selected randomly throughout the school
• The students will be selected on Wednesday afternoon before the choir concert
• The choir director will select five students from each of the forty homerooms in the school

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

According to a random telephone survey, 85% of all working adults in the U.S. are satisfied with their current job. If I asked 500 adults, how many do you predict would be satisfied with their current job?

• 85 adults
• 340 adults
• 500 adults
• 425 adults

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

CCSS.HSS.MD.A.2