WorksheetsBias vs UnBias
Total questions: 20
Worksheet time: 26mins
To get valid results, a sample must be...
biased
unbiased
Which would be a good Unbiased group?
every third student entering the building
every member of the varsity football team
every member in Ms. Zimmer’s drama classes
every student having a second-period French class
A school newspaper will survey students about the quality of the school’s lunch program. Which method will create the least biased results?
Twenty-five vegetarians are randomly surveyed.
Twenty-five students are randomly chosen from each grade level.
Students who dislike the school’s lunch program are chosen to complete the survey
A booth is set up in the cafeteria for the students to voluntarily complete the survey.
A survey is being conducted to determine if a cable company should add another sports channel to their schedule. Which random survey would be the least biased?
surveying 30 men at a gym
surveying 45 people at a mall
surveying 50 fans at a football game
surveying 20 members of a high school soccer team
A survey is being conducted to determine which types of television programs people watch. Which survey and location combination would likely contain the most bias?
surveying 10 people who work in a sporting goods store
surveying the first 25 people who enter a grocery store
randomly surveying 50 people during the day in a mall
randomly surveying 75 people during the day in a clothing store
Erica is conducting a survey about the proposed increase in the sports budget in the Hometown School District. Which survey method would likely contain the most bias?
Erica asks every third person entering the Hometown Grocery Store
Erica asks every third person leaving the Hometown Shopping Mall this weekend.
Erica asks every fifth student entering Hometown High School on Monday morning.
Erica asks every fifth person leaving Saturday’s Hometown High School football game.
A survey is being conducted to determine which school board candidate would best serve the Yonkers community. Which group, when randomly surveyed, would likely produce the most bias?
15 employees of the Yonkers school district
25 people driving past Yonkers High School
75 people who enter a Yonkers grocery store
100 people who visit the local Yonkers shopping mall
Tamra wants to know how tall college basketball players are in Nebraska, so he asks for the heights of all the players on the Creighton basketball team.
Biased
Unbiased
Erick wants to know how many hours of sleep college students get, so he surveys the 12 students in the front row of his college English class.
Biased
Unbiased
You are doing a survey to find out if Knoxville, TN should be the home of a new NBA team and they only asked UT college boys basketball players.
Biased (Unfair)
Unbiased (Fair)
You are doing a survey to find out what kids really think about school lunch and you stand outside a lunchroom and ask every 5th person from every grade.
Biased (Unfair)
Unbiased (Fair)
You are doing a survey to find out what sport high schoolers like the most, and you only ask people from a Rugby team.
Biased (Unfair)
Unbiased (Fair)
