The book offers a formula to find the kth percentile of a data set. Using the book's formula find the 35th percentile in the following data set;

Listed are 29 ages for Academy Award-winning best actors in order from smallest to largest. 18; 21; 22; 25; 26; 27; 29; 30; 31; 33; 36; 37; 41; 42; 47; 52; 55; 57; 58; 62; 64; 67; 69; 71; 72; 73; 74; 76; 77