The variance of their weights is 142.70213764Kg^2
Given:
s = 11.9458 kg
The variance is the square of the standard deviation:
s^2 = 11.9458 ^2 = 142.70213764
The units of the variance are the units of the standard deviation squared, thus in this case kg^22.
A standard deviation (or σ) is a measure of how dispersed the data is in relation to the mean. Low standard deviation means data are clustered around the mean, and high standard deviation indicates data are more spread out.
Learn more about standard deviation here :
https://brainly.com/question/16555520
#SPJ4
