计算平均数
Calculating the Mean
计算一组数据的平均数,并理解平均数代表数据的平均水平。
Calculate and interpret the mean as an average of a data set
学习证据 / Evidence
- 计算五个测验成绩的平均数:72、85、90、68、95
- 解释平均数代表什么,以及它与各个数据值之间的区别
- 已知平均数和所有其他数据值,求出缺失的数据值
- Calculate the mean of five test scores: 72, 85, 90, 68, 95
- Explain what the mean represents and how it differs from individual data values
- Find a missing data value given the mean and all other values
评估问题 / Assessment
如果一家人玩了五轮桌游,得分分别是6、8、7、5和9,{{name}}能算出平均分吗?
If the family scored 6, 8, 7, 5, and 9 on a board game over five rounds, can {{name}} work out the mean (average) score?