2. Customers can rate their service representative by completing a four-question survey at the end of each call. Tiana entered the scores in columns Question 1, Question 2, Question 3, and Question 4 of the Calls table. She wants to calculate the average rating for each call in the Average column. In cell J5, enter a formula using the AVERAGE function and structured references to average the values in the Question 1 to Question 4 columns of the Calls table. I need help as of yesterday, can someone help me please?