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: 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19 。
Question type: data statistics Total data:19
The sum:190
Average value:10
Variance:30
Standard deviation:5.47723 *Note: Totally 5 items are counted.[ 2/4 data statistics ]
Work: Please make statistics on the following data: 28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13 。
Question type: data statistics Total data:16
The sum:328
Average value:20.5
Variance:21.25
Standard deviation:4.60977 *Note: Totally 5 items are counted.[ 3/4 data statistics ]
Work: Please make statistics on the following data: 1,1,2,1,2,3,1,2,3,4,1,2,3,4,5,1,2,3,4,5,6,1,2,3,4,5,6,7 。
Question type: data statistics Total data:28
The sum:84
Average value:3
Variance:3
Standard deviation:1.73205 *Note: Totally 5 items are counted.[ 4/4 data statistics ]
Work: Please make statistics on the following data: 9,9.9,9.99,9.999,9.9999,9.99999,9.999999,9.9999999,9.99999999 。
Question type: data statistics Total data:9
The sum:88.88889
Average value:9.87654
Variance:0.09699
Standard deviation:0.31144 *Note: Totally 5 items are counted.Your problem has not been solved here? Please go to the Hot Problems section!