Distribution of sample standard deviations

Age (years)
0
5
10
15
20
25
30
Freq.
0
4
8
12
16
Population
Age (years)
0
5
10
15
20
25
30
Freq.
0
4
8
12
16
Sample
1 sd, dividing by n
1 sd, dividing by n-1
Standard deviation of age (years)
0
2
4
6
8
10
12
Freq.
0
10
20
30
40
50
Sample sd using n
Sample sd using n-1
Population sd

When you take a sample from a population, what is the relation between the standard deviation of the sample and the sample of the population?

Population sd:
Estimate (dividing by n):
Estimate (dividing by n-1):