Please help.

The following are the annual salaries of 19 chief executive officers of major companies. (The salaries are written in thousands of dollars.) 224, 633, 134, 1250, 157, 743, 676, 405, 472, 452, 767, 542, 181, 338, 586, 519, 204, 1108, 362 Send data to calculator Find 25" and 90 percentiles for these salaries. (If necessary, consult a list of formulas. ) (a) The 25 percentile: I thousand dollars (b) The 90 percentile: thousand dollars