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Quiz
Related Lesson
The Hidden Cost of Pollution
Knowledge Check
Knowledge Check
Question 1 of 5
In the study estimating the effect of tollbooth smog pollution on infant health, which group of infants was 'the control group'?
a.
Infants born within 2km of a tollbooth.
b.
Infants born between 2-10km of a tollbooth and near a highway.
c.
Infants born further than 10km of a tollbooth and near a highway.
d.
Infants born further than 10km of a tollbooth and away from a highway.
Check Answer
Related Courses
Course
Everyday Economics
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