You have 100 people take two tests, A and B. You find that 40 people score above average on Test A but below average on Test B; another 40 people score above average on Test B but below average on Test A; the remaining 20 people score either above average on both, or below average on both. What can you say about the correlation between scores on the two tests? 1) It is likely to be positive 2) It is likely to be negative 3) It is likely to be close to zero 4)It is likely to be close to one
You have 100 people take two tests, A and B. You find that 40 people score above average on Test A but below average on Test B; another 40 people score above average on Test B but below average on Test A; the remaining 20 people score either above average on both, or below average on both. What can you say about the correlation between scores on the two tests? 1) It is likely to be positive 2) It is likely to be negative 3) It is likely to be close to zero 4)It is likely to be close to one
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter9: Solving Quadratic Functions
Section: Chapter Questions
Problem 4CA
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You have 100 people take two tests, A and B. You find that 40 people score above
average on Test A but below average on Test B; another 40 people score above average
on Test B but below average on Test A; the remaining 20 people score either above
average on both, or below average on both. What can you say about the correlation
between scores on the two tests?
1) It is likely to be positive
2) It is likely to be negative
3) It is likely to be close to zero
4)It is likely to be close to one
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