To calculate the collection of their marks we use this formula. 1 R 1 1 R 2. When this is done the answer which is of course 5 appears in cell B2.
With Start times residing in column A and End times in column B you.
With Start times residing in column A and End times in column B you. 1 R n 1n - 1. In the menu HOME-Editing-AutoSum-Average button. 11 -5 17 1 -9 21 4 -6 7 -1 40.