数学OG12-129

wlyd12

数学OG12-129

What is the median number of employees assigned
per project for the projects at Company Z ?
(1)    25 percent of the projects at Company Z have 4
      or more employees assigned to each project.
(2)    35 percent of the projects at Company Z have 2
      or fewer employees assigned to each project.
选C，我理解A和B都不行，但还是不理解C为何就可以，看了解释也觉得不是很说得通阿，请高人指点

ryanxie

<=2的有35%，>=4的由25%，所以剩下40%就是3。把这些数字在数轴上排出来，第50%的一定在3上面，所以可以确定。C

wlyd12

明白了，现在看了您的解释又觉得很简单，不知道当时为何就是没想通，非常感谢！