Question

Newton 县有 $20$ 个城市。它们的人口显示在下方条形图中。所有城市的平均人口由水平虚线表示。下列哪一项最接近这 $20$ 个城市的总人口？

There are $20$ cities in the County of Newton. Their populations are shown in the bar chart below. The average population of all the cities is indicated by the horizontal dashed line. Which of the following is closest to the total population of all $20$ cities?

$65,000$

$75,000$

$85,000$

$95,000$

$105,000$

答案：D

知识点：平均数数据与图表解读

难度评级：870

视频讲解：

Click to load, then click again to play

文字解答：

从虚线读出平均人口约为 $4750$ 。

有 $20$ 个城市，所以总人口约为 $20\cdot4750=95{,}000.$

因此总人口约为 $95,000$ 。

正确答案是 D。

Looking at the horizontal dashed line, the average population is around $4750.$

Since there are $20$ cities, the total population is approximately $20\cdot4750=95{,}000.$

Therefore, the total population is approximately $95,000.$

Thus, the correct answer is D.

2020 AMC 8 第 14 题

答案：D

难度评级：870

视频讲解：

文字解答：

其他年份的第 14 题