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.

 

Solution:

 

    再一次強調 "定義" 解題
    Median: 若是用累積分佈 求出 50% 的數值即可

    1. 0 - 35% --> 0 - 2 people
    2. 75% - 100% --> 4 - 4+ people

    1 + 2
    35% - 75 % --> 3 people (不可能有 3.5 個人囉)

    50% 的點值 沒有異議 就是 3 people

    Median = 3 people  答案 (C)

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