已知数据25,22,21,25,19,26,22,28,24,27,25,26,26,27,29,28,36,24,25,30.在列频数分布表时,如果取组距为3,那么应分成()组,最低分组...
A.28.3~29kW
B.27.6~28.2kW
C.26.9~27.5kW
D.26.2~26.8kW[98%]
A.28.3~29kW
B.27.6~28.2kW
C.26.9~27.5kW
D.26.2~26.8kW
填空题.(1)有一组数据:17,18,23,25,26,27,29,27,30,27,..[98%]
....(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...
23, 27, 26, 8, 29, 1, 32, ( )[97%]
23, 27, 26, 8, 29, 1, 32, ( ) A.35 B.38 C.0 D.-1
23 , 27 , 26 , 8 , 29 , 1 , 32 , ( )[97%]
23 , 27 , 26 , 8 , 29 , 1 , 32 , ( )A . 35 B . 38 C . 0 D . -1
18. 23, 27, 26, 8, 29, 1, 32, ( )[97%]
18. 23,27,26,8,29,1,32,()A.35B.38C.0D.-1
计算:21+22+23+24+25+26+27+28+29.[97%]
计算:21+22+23+24+25+26+27+28+29.
...25,22,21,25,19,26,22,28,24,27,25,26,26,27,29,28,36,24,25,30....[97%]
已知数据:25,22,21,25,19,26,22,28,24,27,25,26,26,27,29,28,36,24,25,30.在列频数分布表时,如果取组距为3,那么应分成()组,最低分...
...25,22,21,25,19,26,22,28,24,27,25,26,26,27,29,28,36,24,25,30....[97%]
已知数据:25,22,21,25,19,26,22,28,24,27,25,26,26,27,29,28,36,24,25,30.在列频数分布表时,如果取组距为3,那么应分成()组,最低分...
A.25.26%
B.26.27%
C.21.29%
D.22.58%[97%]
A.25.26%
B.26.27%
C.21.29%
D.22.58%