2025年教学资料:8.6样本的均值和标准差
授课题目8.6样本的均值和标准差选用教材高等教育出版社《数学》(基础模块下册)授课时长2课时授课类型新授课教学提示本课通过实例引导学生会采用统计图描述和表达数据,并举例说明帮助学生绘制频率分布表和频率直方图,指导统计图表的特征及选用方法.教学目标能说明均值、方差和标准差的含义,初步学会运用均值、方差和标准差的计算方法,逐步提高数据分析、数学运算和数学建模等核心素养.教学重点均值与标准差的计算.教学难点均值与标准差的计算.教学环节教学内容教师活动学生活动设计意图情境导入观察并思考:(1)在一次全省的职业院校数学考试中,参加考试的学生大约有100000人,如果想了解考生的数学平均成绩,可否在总体中...
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