The following are the annual salaries of 20 chief executive officers of major companies. (The salaries are written in thousands of dollars.) 428, 75, 362, 204, 676, 562, 790, 700,

405, 653, 181, 743, 134, 814, 84, 452, 224, 1250, 586, 157 Find 25th and 90th percentiles for these salaries.