Statistics Help Please

Question

Below are 36 sorted ages of an acting award winner. Find the percentile corresponding to age 66 using the method presented in the textbook.
17 22 23 29 30 30 32 33 34 34
41 43 44 45 45 46 46 53 55 56
56 57 61 62 64 66 66 67 67 68
70 71 77 77 78 80
percentile of value 66 = (Round to the nearest integer as needed.)

Answer 1

In the sorted list, 66 occupies positions 26 and 27 of 36 items.  Using the average of 26.5 and considering 36 items, that means that an age of 66 is greater than  (25.6)/36 = 71.11% of the values.  This is the 71-st percentile.