WorksheetsBiased Stats
Total questions: 11
Worksheet time: 26mins
What can be used to show a cause-and-effect relationship between two variables?
A controlled experiment
A census
An observational study
A cross-sectional study
A sample survey
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 want to know your town’s favorite fast-food restaurant. You randomly ask 30 people their preference as they leave a McDonald’s restaurant.
Biased (Unfair)
Unbiased (Fair)
Which of the following survey questions is biased?
Do you prefer daytime or evening television programming?
Do you prefer to bring a healthy lunch to school or do you eat cafeteria food?
Do you think David Miller is a good mayor?
How many siblings do you have?
Select the best way to generate a list of the top three food items sold in your school cafeteria.
Gather data about the number of sales of each food item from the cash register records.
Ask each person who eats in the school cafeteria to tell you the individual's choice for the top food item.
Interview all the teachers about what they consider to be the top food item.
Ask 10% of the students in each grade to tell you their choice for the top food item.
A Characteristic of a good survey is:
To choose specific members of a population.
To let each person respond as often as they wish.
To aim for a good representation of the population.
To include anyone who volunteers to be part of the sample.
