Mathematics
Grade 12
45 min
Identify biased samples
Tutorial Preview
1
A principal surveys students in the library at lunch about the school's favorite sport. Why is this biased?
2
A radio show asks listeners to call in to vote on a new city law. Why is this biased?
3
A survey asks, 'Don't you agree that our city's beautiful new park is a great addition?' Why is this biased?
Sample Practice Questions
Easy
To find the student body's favorite class, a teacher only surveys students in the art club. What type of bias is this?
0.Selection
1.Voluntary
2.Leading Q
3.No Bias
Easy
A news website posts a poll asking readers to vote on the most important issue. What type of bias is this?
0.Selection
1.Voluntary
2.Leading Q
3.No Bias
Easy
A poll asks: 'Should we waste taxpayer money on a frivolous new art project?' What type of bias is this?
0.Selection
1.Voluntary
2.Leading Q
3.No Bias
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