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: 2,3,5,6,8,9 。
Question type: data statistics Total data:6
The sum:33
Average value:5.5
Variance:6.25
Standard deviation:2.5 *Note: Totally 5 items are counted.[ 2/4 data statistics ]
Work: Please make statistics on the following data: 1,4,4,5,7,5,8 。
Question type: data statistics Total data:7
The sum:34
Average value:4.85714
Variance:4.40816
Standard deviation:2.09956 *Note: Totally 5 items are counted.[ 3/4 data statistics ]
Work: Please make statistics on the following data: 2,6,4,5,7,7,3,8,5,10 。
Question type: data statistics Total data:10
The sum:57
Average value:5.7
Variance:5.21
Standard deviation:2.28254 *Note: Totally 5 items are counted.[ 4/4 data statistics ]
Work: Please make statistics on the following data: 3,9,1,6,0,8,0,0 。
Question type: data statistics Total data:8
The sum:27
Average value:3.375
Variance:12.48438
Standard deviation:3.53332 *Note: Totally 5 items are counted.Your problem has not been solved here? Please go to the Hot Problems section!