The following are the annual salaries of 16 chief executive officers of major companies . ( The salaries are written in thousands of dollars . ) 562...

Could someone please help me with the question in the screenshot?

The following are the annual salaries of 16 chief executive officers of major companies . ( The salaries are written in thousands of dollars . )562 , 157 , 609 , 428 , 676 , 181 , 271 , 653 , 519 , 362 , 495 , 248 , 204 , 723 , 84 , 452Find 20th and 75th percentiles for these salaries .( a ) The 20 th percentile : \\ thousand dollars( b ) The 75 th percentile : \\ thousand dollars