Reasonable Samples

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.7.SP.A.1

At a middle school, the 7th graders will conduct a survey for where to go on a field trip. Which method will result in the least biased decision?

• to randomly ask 8th grade students who went on a field trip last year
• to randomly choose some 7th grade students to select a location
• to ask all 7th grade teachers and administrators for a location
• to ask the student council to choose a location

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

Ana wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results?

• thirty students who are often tardy
• thirty students who are rarely tardy
• thirty of her friends
• thirty randomly selected students from her school

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

Marcos wants to find out how many students at his school like to go to the movies. Which survey method is likely to produce a representative survey?

• Ask the boys in the boys locker room.
• Ask the 25 students in his homeroom class.
• Ask students coming out of a movie theater.
• Ask half of the 34 students on the soccer team.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

Mrs. Croix is conducting a survey to find out the favorite snack of fifth and sixth graders. She will ask a sample of 100 students. Which of the groups below should be surveyed to get the BEST representative sample?

• 100 students at the movie theater
• the first 100 students who go to a local baseball game
• 5 students from each of the 20 local elementary schools
• 20 students from each of the 5 local fifth- and sixth-grade schools

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

A musician wanted to see what people who bought his last album thought about the songs. Which choice best represents a sample? .

• Every person who bought the album.

• A selection of people who didn't want to buy the album.

• 250 girls who bought the album

• A selection of 3,294 people who bought the album.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

A gaming website wanted to find out which console its visitors owned. Which choice best represents a population?

• Visitors to the 3DS section.

• All of the website visitors.

• Visitors to the PS4 section.

• Visitors who are on the website for more than 5 minutes.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

A beverage company wanted to see if people in the United States liked their new logo. Which choice best represents a population?

• A selection of logo artists.

• Every person in the United States.

• A selection of shoppers from different states.

• 3,800 children age 5 - 15

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

Before a nation-wide election, a polling place was trying to see who would win. Which choice best represents a sample?

• A selection of voters over age 50.

• A selection of male voters.

• A selection of voters of different ages.

• All voters.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3