比较测量数据

描述、解释并比较单个变量的数据分布，使用合适的集中趋势度量（平均数、中位数、众数）和离散程度度量（极差），并说明离群值的影响。

Describe, interpret, and compare distributions of a single variable using appropriate measures of central tendency (mean, median, mode) and spread (range), including the effect of outliers

学习证据 / Evidence

• 计算数据集的平均数、中位数和众数，并解释每种统计量在什么时候最适用。
• 求数据集的极差，并解释离群值对平均数和中位数分别有什么影响。
• 使用两个数据集的平均值和极差进行比较，得出结论。

• Calculate mean, median, and mode for a data set and explain when each is most appropriate
• Find the range of a data set and explain how an outlier affects the mean versus the median
• Compare two data sets using their averages and ranges to draw conclusions

评估问题 / Assessment

如果{{name}}有全班同学的考试成绩，他们能找出平均数、中位数和极差，并解释每一项分别说明了班级的哪些表现吗？

If {{name}} had the test scores of a whole class, could they find the mean, median, and range, and explain what each tells you about how the class performed?