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In: Statistics and Probability

Grade 50 70 47 75 82 79 79 88 81 45 90 81 Time Spent (Hrs)...

Grade 50 70 47 75 82 79 79 88 81 45 90 81
Time Spent (Hrs) 166 76 30 100 100 62 9 17 13 29 1 29

a. Create a scatterplot

b. what is the correlation, slope and y-intercept?

c. Using your regression equation make a prediction of the grade earned if a student spent three hours completing the exercise

d. how confident are you in this prediction?

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