Question Completion Status: A researcher measured the number of coffee cups consumed (X) by 5 students and the number of hours they slept the previous night (Y). The results are presented in the following table: X - # of coffee cups Y - hours of sleep 7 2 7.5 6 5 3 6.5 Claculate E (Y-7)2 . Cle Save nut Swent to save and submit. Check Save AN Answers to save all unsuura. Save All Answers Save and Submit