Overview: 4 questions will be solved this time.Among them
☆4 mathematical statistics
[ 1/4 data statistics ]
Work: Please make statistics on the following data: 2,5,8,11,14,17,20,23,26,29,32,35,38,41 。
Question type: data statistics Total data:14
The sum:301
Average value:21.5
Variance:146.25
Standard deviation:12.09339 *Note: Totally 5 items are counted.[ 2/4 data statistics ]
Work: Please make statistics on the following data: 1,1,2,1,2,3,1,2,3,4,1,2,3,4,5,1,2,3,4,5,6 。
Question type: data statistics Total data:21
The sum:56
Average value:2.66667
Variance:2.22222
Standard deviation:1.49071 *Note: Totally 5 items are counted.[ 3/4 data statistics ]
Work: Please make statistics on the following data: 27,2.7,0.27,0.027,0.0027,0.00027,0.000027 。
Question type: data statistics Total data:7
The sum:30
Average value:4.28571
Variance:86.82746
Standard deviation:9.31813 *Note: Totally 5 items are counted.[ 4/4 data statistics ]
Work: Please make statistics on the following data: 3.5,3.6,3.7,3.8,3.6,3.7,3.8,3.7,3.8,3.8 。
Question type: data statistics Total data:10
The sum:37
Average value:3.7
Variance:0.01
Standard deviation:0.1 *Note: Totally 5 items are counted.Your problem has not been solved here? Please go to the Hot Problems section!