QuestionA contractor records the areas, in square feet, of a small sample of houses in a neighborhood to determine data about the neighborhood. They are: $$2,400 ; 1,750 ; 1,900 ; 2,500 ; 2,250 ; 2,100$$
Which of the following represents the numerator in the calculation of variance and standard deviation? $(225)^{2}+(-425)^{2}+(-275)^{2}+(325)^{2}+(75)^{2}+(-75)^{2}=423,750$ $(650)^{2}+(-150)^{2}+(-600)^{2}+(250)^{2}+(150)^{2}+(-300)^{2}=980,000$ $(250)^{2}+(-400)^{2}+(-250)^{2}+(350)^{2}+(100)^{2}+(-50)^{2}=420,000$ DONE