Average income of 450 families in group A is $3600 and 950 families in group B is $2700. (a) From the list below, select
Posted: Mon Jul 11, 2022 11:23 am
Average income of 450 families in group A is $3600 and 950 families in group B is $2700. (a) From the list below, select a formula to compute combined average of all 1400 families. Nz+N₂2 M+₂ #1+32 N₁2+ N₂1 M₁+№₂ (b) Identify the variables used in the formula. N₁ N₂ = x1 = $ 72 = $ (c) Find the average income of all 1400 families. Answer = $