一道GRE数学题，为什么选C？
我个人觉得T的range最小呀。
推荐回答（4个）
题目问的是在四项加起来美元数量最少的地区，图标横轴是美元数量，最少的自然是P，P中Transportation所占比例就是16%
The range of the dollar amounts in a region means something different than what you're thinking. In each region there are four living expenses that take on four different values (outputs). The rangeof the expenses is the difference between the most expensive thing and the least expensive thing in a given region. Calculating this for each region, it looks like region TT with an expense range of 50%−14%=36%50%−14%=36%, has the least range. And then the transportation expense in region TT is 20%.
range的正解详细解释请查看链接
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