一道GRE关于四分位的题目求详解ThecompanyawhichMarkisemployedhas80employees,eachofwomhasadifferentsalary.Mark'ssalaryof$43,700isthesecond-highestsalaryinthefirstquartileofthe80salaries.Iftheconmpanywereto

Question

一道GRE关于四分位的题目求详解
The company a which Mark is employed has 80 employees,each of wom has a different salary.Mark's salary of $ 43,700 is the second-highest salary in the first quartile of the 80 salaries.If the conmpany were to hire 8 new employees at salaries that are less than the lowest of the 80 salaries,what would Mark's salary be with respect to the quartiles of the 88 salaries at the company,assuming no other changes in the salaries?
The fifth-lowest salary in the second quartile.

Answer 1

公司80人,分四组(20人1组)
分别是 first(第61-80位),second(41-60),third(21-40),fourth(1-20)quartile
Mark 薪金原是在公司是1组第2位高,即first quartile 中的第62位
增加8人後,分四组(22人1组)
四组变化分别是 (67-88),(45-66),(23-44),(1-22)
因此第62位的Mark现在变成second quartile,(66 65 64 63 62..)的倒数第5位(fifth-lowest)