高中数学第二章统计2.2.2用样本的数字特征估计总体的数字特征人教版.pptx

学业分层测评,阶段一,阶段二,阶段三,1/47,2/47,最多,最多,相等,次数都相等,3/47,从小到大,最中间那个数,最中间,两个数平均数,总和,个数,4/47,5/47,6/47,7/47,8/47,众数,中位数,相等,平均数,之和,9/47,样本数据,样本容量,样本平均数,10/47,11/47,12/47,13/47,14/47,15/47,16/47,17/47,18/47,19/47,20/47,21/47,22/47,23/47,24/47,25/47,26/47,27/47,28/47,29/47,30/47,31/47,32/47,33/47,34/47,35/47,36/47,37/47,38/47,39/47,40/47,41/47,42/47,43/47,44/47,45/47,46/47,47/47,