Please let me know if my logic is wrong:
A Mean = 10
B Mean = 11
Just looking at the sets and subtracting the values from the Mean
A = 4,4,1,0,4,5
B = 4,2,1,0,3,4
Just by eyeballing, Set A sum is bigger (I believe you would square each value, sum and then take the square root to find the SD), so the Square Root for A is going to be bigger than B.