谈谈平均数与方差

On the Statistical Variance

本文针对学生在方差与平均数,存在的许多疑惑,通过计算火箭队队员与舞蹈演员的方差比较,使学生理解集中趋势与离中趋势,进而说明在社会经济、艺术欣赏中的应用,以达到培养学生正确的就业观及提高美商(BQ)。

This paper aimed at students in variance and average, the presence of many doubts. The author through the calculation of rocket team and the dancer＇s variance comparison, makes the student to understand the trend of concentration and dispersion tendency, then explains that in the social economy, the application of art appreciation. In order to cultivate students a correct concept of employment and improve American Beauty Quotient.