Suppose that a statistics teacher ask a few student the number of hours they studied per week doing a week and the grade on the exam. He put it in the following table. Hours studying 1/21121/234 Test Grade707982896592100 Determine the correlation coefficient. (round-off to 4 decimal place)

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]