填空题. (1)有一组数据:17,18,23,25,26,27,29,27,30
问题:
填空题.
(1)有一组数据:17,18,23,25,26,27,29,27,30,27,26.这组数据的平均数是______,众数是______,中位数是______.
(2)3个数的平均数是12.5,甲数是乙数的2倍,丙数是17.7,乙数是______.
(3)有一组数据:2,3,8,7,10,5,7.这组数据的中位数是______,众数是______.
填空题.
(1)有一组数据:17,18,23,25,26,27,29,27,30,27,26.这组数据的平均数是______,众数是______,中位数是______.
(2)3个数的平均数是12.5,甲数是乙数的2倍,丙数是17.7,乙数是______.
(3)有一组数据:2,3,8,7,10,5,7.这组数据的中位数是______,众数是______.