GRE考试

【单选题】The 10 households on a certain street have household incomes that range from$34，000 to$150，000 and an average(arithmetic mean)household income of$60，000．If the household with the highest income and the one with the lowest income are excludeD、What is the average household income for the remaining 8 households
A、$41，600
B、$47，000
C、$52，000
D、$61，000
E、$75，000

网考网参考答案：C
网考网解析：
某一街道上10个家庭的家庭收入在34，000美元至150，000美元之间，平均(算术平均)家庭收入为60，000美元。若把收入最高的家庭和收入最低的家庭排除在外，那么剩余8个家庭的平均收入是多少 由题意可得： [*] document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>