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: 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20 。
Question type: data statistics Total data:20
The sum:210
Average value:10.5
Variance:33.25
Standard deviation:5.76628 *Note: Totally 5 items are counted.[ 2/4 data statistics ]
Work: Please make statistics on the following data: 4.5,4.4,4.3,4.2,4.1,4,3.9,3.8,3.7,3.6,3.5 。
Question type: data statistics Total data:11
The sum:44
Average value:4
Variance:0.1
Standard deviation:0.31623 *Note: Totally 5 items are counted.[ 3/4 data statistics ]
Work: Please make statistics on the following data: 1,3,6,10,15,21,28,36,45,55,66,78,91,104,120,136 。
Question type: data statistics Total data:16
The sum:815
Average value:50.9375
Variance:1803.80859
Standard deviation:42.47127 *Note: Totally 5 items are counted.[ 4/4 data statistics ]
Work: Please make statistics on the following data: 0.01,0.02,0.03,0.04,0.05,0.06,0.07,0.08,0.09,0.1 。
Question type: data statistics Total data:10
The sum:0.55
Average value:0.055
Variance:0.00082
Standard deviation:0.02872 *Note: Totally 5 items are counted.Your problem has not been solved here? Please go to the Hot Problems section!