Standard Deviation

Write a program that can calculate the standard deviation of a set of numbers, which were entered from the keyboard at the run time.

The standard deviation was defined in the URL: Standard deviation - Wikipedia, the free encyclopedia .

For calculating variance, use the formula III - On-line algorithm listed at: Algorithms for calculating variance - Wikipedia, the free encyclopedia

Use the following data:

Set 1

Set 2

Set 3

Set 4

11.2

1

8

5

1.3

2

25

6

2.4

3

7

8

8.5

4

5

9

7.6

5

8

3.7

6

3

4.8

7

10

6.9

8

12

5.0

9

9

9.1

10

Required outputs:

*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*

Result:

How many numbers have been read from the data file?

Sum: of the numbers

Mean: of the numbers

Variance: of the numbers

Standard Deviation: of the numbers

*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*

Set 1 Set 2 Set 3 Set 4

Number of entered values 10 10 9 4

Sum 60.5 55 87 28

Mean 6.05 5.5 9.67 7

Variance 9.89 9.17 40 3.33

Standard Deviation 3.15 3.03 6.32 1.83

can someone teach me how to start and do with this please, i get lost with the problem and dont know what do do