Please please help!!!!

For an answer to be graded as correct, you must use an Excel formula: 1. Begin each formula with an = sign. 2. Reference cells, instead of entering values. Example: =B3+C3 cent, 21 perc m on the cor tance of the deviation? You've observed the following returns on Pine Computer's stock over the past five years: 8 percent, 12 percent, 14 percent, 21 percent, and 16 percent. What was the arithmetic average return on the company's stock over this five-year period? What was the variance of the company's returns over this period? The standard deviation? input area: (Use cells A6 to B11 from the given information to complete this question. You must use the built-in Excel function to answer this question. Make sure to use the "sample" Excel formulas.)