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Mathematical statistics：
Enter the data to be counted, separated by commas (","), and click Next to get the statistics results.
Statistical items: total data, sum, average, variance and standard deviation.
Note: Statistical data can only be numbers, which cannot be algebraic expressions or mathematical functions (including trigonometric functions).
Enter the data to be counted, separated by commas (","), and click Next to get the statistics results.
Statistical items: total data, sum, average, variance and standard deviation.
Note: Statistical data can only be numbers, which cannot be algebraic expressions or mathematical functions (including trigonometric functions).
Current location：Mathematical operation > History of Mathematical Statistics > Answer
Overview: 2 questions will be solved this time.Among them
☆2 mathematical statistics
[ 1/2 data statistics ]
Work: Please make statistics on the following data: 2,7,9,7,11,9,7,3,5,5,4,9,7,5,2,1,3,3,8,4,12,5,8,13,4,6 。
Question type: data statistics
Total data：26
The sum：159
Average value：6.11538
Variance：9.56361
Standard deviation：3.09251
*Note: Totally 5 items are counted.
[ 2/2 data statistics ]
Work: Please make statistics on the following data: 8,2,3,3,5,4 。
Question type: data statistics
Total data：6
The sum：25
Average value：4.16667
Variance：3.80556
Standard deviation：1.95078
*Note: Totally 5 items are counted.