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题目

() are used to display continuous data. It can be useful in predicting future events when they show trends over time. A. line graphs B. bar graphs C. circle graphs D. scatter plots

() are used to display continuous data. It can be useful in predicting future events when they show trends over time.
A. line graphs
B. bar graphs
C. circle graphs
D. scatter plots

题目解答

答案

### 问题解析 这道题考察的是不同类型的图表及其适用场景。题目要求选择一种图表类型,用于显示连续数据,并且能够帮助预测未来事件,特别是当数据随时间显示趋势时。 1. **线图(Line Graphs)**: - 线图用于显示数据随时间的变化趋势。它们通过连接数据点的线来表示数据的连续性。 - 线图非常适合显示连续数据,特别是当数据随时间变化时,可以清晰地看到趋势和模式。 - 线图在预测未来事件时非常有用,因为它们可以显示数据的长期趋势。 2. **条形图(Bar Graphs)**: - 条形图用于比较不同类别的数据。它们通过条形的长度来表示数据的大小。 - 条形图不适合显示连续数据,因为它们主要用于比较不同类别的数据点。 3. **圆饼图(Circle Graphs)**: - 圆饼图(也称为饼图)用于显示部分与整体的关系。它们通过将圆分成不同的扇形来表示各个部分的比例。 - 圆饼图不适合显示连续数据,因为它们主要用于显示比例关系。 4. **散点图(Scatter Plots)**: - 散点图用于显示两个变量之间的关系。它们通过在坐标系中绘制点来表示数据点的位置。 - 散点图可以显示数据点之间的相关性,但不适合显示连续数据的趋势。 ### 答案 根据上述分析,最适合显示连续数据并预测未来事件的图表类型是 **线图(Line Graphs)**。 因此,正确答案是 **A line graphs**。

解析

本题考查不同图表类型的应用场景,核心在于理解线图(line graphs)在展示连续数据和趋势预测中的独特优势。

  • 关键点:题目中“连续数据”和“预测未来事件”是解题突破口。
  • 线图通过连接数据点展示变化趋势,特别适合时间序列数据(如温度、销售额随时间的变化),能直观反映趋势,从而支持预测。
  • 其他图表类型(如条形图、饼图、散点图)虽各有用途,但无法直接体现连续性或趋势。

选项分析:

  1. A. Line Graphs(线图)

    • 特点:用折线连接数据点,强调数据随时间或其他连续变量的变化趋势。
    • 适用场景:展示连续数据(如每日温度、季度销售额),预测未来趋势(如根据历史数据推断未来走向)。
    • 结论:符合题意。
  2. B. Bar Graphs(条形图)

    • 特点:用条形高度表示不同类别的数据大小,强调类别间的比较。
    • 局限性:无法体现数据的连续性或变化趋势。
  3. C. Circle Graphs(圆饼图)

    • 特点:用扇形比例表示部分与整体的关系,强调占比。
    • 局限性:不适用于展示时间变化或连续数据。
  4. D. Scatter Plots(散点图)

    • 特点:用点阵展示两个变量之间的关系,适合分析相关性。
    • 局限性:无法直接反映数据随时间的连续趋势。

最终判断:只有线图能同时满足“显示连续数据”和“预测趋势”两个条件。

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