25 and 80 percentile, apparently 216.5 is incorrect

mg The serum cholesterol levels (in ) of 19 individuals are dL 230, 240, 252, 237, 259, 244, 228, 222, 235, 220, 215, 198, 218, 211, 242, 186, 208, 249, 225 Send data to calculator Find 25"and 80" percentiles for these cholesterol levels. (If necessary, consult a list of formulas.) mg (a) The 25 percentile: 216.5 dL mg (b) The 80' percentile: 242.8 dL