Can anyone help with this problem on summation?

The following is a list of 14 measurements. 34, 89, 28, 59, 29, 11, 32, 68, 75, 33, 81, 62, 83, 41 II: Send data to calculator) II: Send data to Excel 3' Suppose that these 14 measurements are respectively labeled x1, x2, ..., x14. (Thus, 34 is labeled x1, 89 is labeled x2, and so on.) Compute the following. Round your answer to at least two decimal places. [D x b '3 1