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QUESTION
the average amount of studying a person does the two days before a business statistics exam is 6 hours with a standard deviation of 1.2 hours.
the average amount of studying a person does the two days before a business statistics exam is 6 hours with a standard deviation of 1.2 hours. The average exam score is 74 with a standard deviation of 12 points. The correlation betwee the two is 0.80. Find the equation for the line that would predict a person's test score from the amount of time s/he studied.
