【摘要】 利用偏度、峰度检验法,针对三年中《概率论与数理统计》课程的考试成绩,分六个学期,详细地检验了成绩总体是否服从正态分布,绘制了直方图.深刻地分析了成绩发生异常情况的原因以及应该采取的教学策略.统计结果带有广泛的普遍性.更多还原

【Abstract】 This paper tests whether the populations of examination record reconcile the normal distribution in detail,in the light of the examination record of the course "probability theory & mathematical statistics" from recent three years,dividing into six terms,by applying the testing method of skewness and kurtosis.A histogram is drawn.The reasons for the examination records change normality and the instructable policy which should be taken are analysed in depth.The statistical results take wide generality.更多还原