Given an array A containing N integers, find the variance and standard deviation of the array. Print your answer up to 2 decimal points.
Problem Constraints
1<N<1000. 1<=A[i]<=1000
Input Format:
Number of testcasesFor each test space separated integers are listed in a new line.
Ouput Format:
standard deviation and variance in this order for each test case in a new line.
Example Input:
2
10 10 20 20 30 4
1 2 3 4 5 6 7 8
Example Output:
8.6 74.0
2.24 5.0
Note: