Scientists want to investigate a possible relationship between the number of hours of sunlight in a certain location in the world and the level of depression amongst people living in that location. Five different worldwide locations were selected and the results presented in the table below. Location A B C D E Hours of Sunlight 8 4 10 6 7 5.1. Draw a scatter diagram depicting the data. 5.2. Calculate the Pearson's correlation coefficient. 5.3. Determine the linear regression equation. Level of depression (%) 20 50 10 45 15

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