Based on the following calculator output, determine the population standard deviation of the dataset, rounding to the nearest 100th if necessary. 1-Var-Stats \text{1-Var-Stats}
1-Var-Stats
xˉ=124.857142857\bar{x}=124.8571428 57
x
ˉ
=124.857142857
Σx=874\Sigma x =874
Σx=874
Σx2=110202\Sigma x^2 =110202
Σx
2
=110202
Sx=13.396872414Sx =13.396872414
Sx=13.396872414
σx=12.4030937549\sigma x =12.4030937549
σx=12.4030937549
n=7n =7
n=7
minX=109\text{minX} =109
minX=109
Q1=112\text{Q}_1 =112
Q
1
​

=112
Med=128\text{Med} =128
Med=128
Q3=140\text{Q}_3 =140
Q
3
​

=140
maxX=140\text{maxX} =140
maxX=140