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

【正确答案】 C
【答案解析】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:
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