Overview: 1 questions will be solved this time.Among them
☆1 mathematical statistics
[ 1/1 data statistics ]
Work: Please make statistics on the following data: 100,100,100,100,100,100,90,90,90,90,90,90,90,90,90,90,90,90,80,80,70,70,70,70,70 。
Question type: data statistics Total data:25
The sum:2190
Average value:87.6
Variance:106.24
Standard deviation:10.30728 *Note: Totally 5 items are counted.Your problem has not been solved here? Please go to the Hot Problems section!