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 can only be accurate if each teacher is included in the sample

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 choose some 7th grade students to select a location

to randomly ask 8th grade students who went on a field trip last year

to ask all 7th grade teachers and administrators for a location

to ask the student council to choose a location

A music store gives comment cards to all members of its Jazz Club to find out about satisfaction with the club's features. Identify the sample.

All music store customers except Jazz Club members.

A computer manufacturer surveys its customers who purchased laptop computers to ask what software the company should include with its computer. Identify the population.

Customers who purchased laptop computers.

Customers who are interested in software.

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

Which scenario would produce the least biased results?

asking athletes at a gym what their favorite television show is

asking shoppers at a store where their favorite place to shop is

asking fans at a baseball game who their favorite baseball team is

asking students in a college library what their favorite college sports team is

A state fair had 1,019,887 people in attendance. The fair committee performed a survey. The question was, “What do fairgoers enjoy most about the fair?” Of those who responded, 83% reported eating traditional foods. Which group of people represents the sample group?

Fair goers who responded to the survey

Fair goers who like traditional foods

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 randomly selected students from her school

thirty students who are often tardy

thirty students who are rarely tardy

A student surveys mathematics teachers to get their opinion on teaching. What is the sample?

All mathematics teachers in the school.

All teachers within the school.

All teachers except mathematics teachers.

The manager of a book store surveys people who buy mystery novels to see if the store should expand its hours. What is the population?

People who visit the bookstore.

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?

20 students from each of the 5 local fifth- and sixth-grade schools

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

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 randomly selected students from her school

thirty students who are often tardy

thirty students who are rarely tardy

Populations and Samples

Authored by Stephanie Bone

Mathematics

7th Grade

CCSS covered

Used 44+ times

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26 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

_______ is a part of a group being surveyed.

Sample

Population

Random Sample

Quartile

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

_______ is the entire group of objects or individuals considered for a survey.

Sample

Population

Random Sample

Quartile

Tags

CCSS.7.SP.A.1

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Why do we randomly select our samples?

for control

reduce bias

so we don't get the same answers from everyone

to eliminate confounding results

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.
She picks the student in every 5th seat.

Simple Random

Systematic

Unbiased

convenience

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.
She selects the five closest to her desk.

simple random

representative

Convenience

Systematic

Tags

CCSS.7.SP.A.1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Elise, a supermarket employee, approached 50 random customers and asked whether they would be willing to discuss what they like most about the store. She interviewed the 22 who said yes. Is this sample of the supermarket's customers likely to be biased?

yes

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Leslie surveyed the 9 youngest students in the elementary school. Is this sample of the students in the school likely to be representative of all the students in the school?

yes

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

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Populations and Samples

_______ is a part of a group being surveyed.

_______ is the entire group of objects or individuals considered for a survey.

Why do we randomly select our samples?

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.She picks the student in every 5th seat.

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.She selects the five closest to her desk.

Elise, a supermarket employee, approached 50 random customers and asked whether they would be willing to discuss what they like most about the store. She interviewed the 22 who said yes. Is this sample of the supermarket's customers likely to be biased?

Leslie surveyed the 9 youngest students in the elementary school. Is this sample of the students in the school likely to be representative of all the students in the school?

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?

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?

Why do we randomly select our samples?

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A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.
She picks the student in every 5th seat.

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.
She selects the five closest to her desk.