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Timed Test For
Positive and negative linear correlations from scatter plots
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Sample Problem
Aubree wanted to see if there is a connection between the time a given exam takes place and the average score of this exam. She collected data about all the exams from the previous year and arranged the average scores of the exams according to the period they took place, as shown below. **What is the best description of this relationship?** [[☃ radio 1]] 
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Duration
30 seconds
60 seconds (1 minute)
120 seconds (2 minutes)
180 seconds (3 minutes)
300 seconds (5 minutes)