高考数学总复习高考研究课样本估计总体市赛课公开课一等奖省名师优质课获奖PPT课件.pptx

结 束,样本估计总体,考点,考查频度,考查角度,频率分布直方图,5,年,2,考,用频率预计概率、由直方图求方差、特征值,茎叶图,5,年,1,考,茎叶图绘制、特征值预计,图表,5,年,2,考,柱状图,、,由图表数据分析,1/32,2/32,3/32,4/32,5/32,6/32,7/32,满意度评分分组,50,60),60,70),70,80),80,90),90,100,频数,2,8,14,10,6,图,8/32,9/32,满意度评分,低于,70,分,70,分到,89,分,不低于,90,分,满意度等级,不满意,满意,非常满意,10/32,11/32,12/32,13/32,14/32,15/32,16/32,17/32,18/32,19/32,20/32,21/32,22/32,23/32,24/32,25/32,26/32,27/32,28/32,29/32,30/32,31/32,32/32,