Which list of numbers below has the largest standard deviati

Which list of numbers below has the largest standard deviation?

a) 1, 3, 5, 7, 9

b) 95, 96, 97, 98, 99

c) 6, 7, 8, 9, 10
d) 1001, 1002, 1003, 1004, 1005

List (a) becuase the range of the list (a) is 9-1=8 which is larger than all other 3 lists. So standard devistion of the list (a) will be largest.