The following table presents the test scores on the first (x) and second (y) exams in a Biology class. X 45 45 54 54 45 45 55 69 59 49 49 y 60 43 43 46 46 44 64 69 69 56 The least-squares regression line is in the form y= bo + bx. Compute the value of b. That is, compute the slope. Round your answer to two decimal places. Write only a number as your