How do you calculate in Excel? Please explain how. Thank you.

Section Exercise 2-22 (Algo) Below is a 6 8 array containing the ages of moviegoers. Treat this as a population. ed 32 23 14 23 40 21 34 23 11 10 11 56 33 62 51 63 18 11 12 65 33 34 62 51 57 35 31 12 64 38 13 15 13 15 30 49 58 17 11 62 42 15 16 20 58 13 20 21 (a) What was the proportion of all 48 moviegoers who were under age 60? (Round your answer to 2 decimal places.) Proportion 0.70 X