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Quiz
Related Lesson
The Idea Equation
Knowledge Check
Knowledge Check
Question 1 of 4
In the United States in 2012, the number of researchers, or idea creators, per 1000 people was approximately
a.
2.5.
b.
4.0.
c.
8.0.
d.
20.0.
e.
None of the above.
Check Answer
Related Courses
Course
Principles of Macroeconomics
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