Household \(\sigma = 1.421\)
Family \(\sigma = 1.249\)
In part (a), we concluded that the spread of the household distribution was greater than the spread of the family distribution, becatise the histogram of the household distribution is wider.
This is confirmed hy the standard deviations, hecausethe standard deviation of household is greater than the standard deviation of family.
Moreover, this also makes sense, becatise a hotischold can contain 1 individual but a family always needs to contain more than 1 individual and thus there are more possible values for the number of individuals in a household (making its standard deviation greater).