20. The nork experiences ( in years) of 14 employees of a company are: 8, 21, 11, 4, 15, 17, 10, 9, 8, 6, 2, 11, 27,6 The approximate value of the Toth percentile for this data as well as the percentile rank of 17 are respectively: a ) 27 and 68-23%. b ) 9 and 82. 54 % c ) 11 and 78.57% d ) 17 and 74.98 %