AMC 8 1990 Problem 20
AMC8 1990 年第 20 题
统计与数据图表★★★☆☆
The annual incomes of 1,000 families range from $8200 to $98,000. In error, the largest income was entered on the computer as $980,000. The difference between the mean of the incorrect data and the mean of the actual data is
1,000 个家庭的年收入范围为 $8200 到 $98,000。错误地将最大收入输入为 $980,000。错误数据的平均数与实际数据的平均数之差为
- A.$882
- B.$980
- C.$1078
- D.$482,000
- E.$882,000
正确答案 · Correct Answer
A
解析 · Solution
解析整理中
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