The mean electric bill for Family C is approximately greater than the mean electric bill for Family A. This
difference is about
the mean absolute deviation of either family's electric bills.

72 is the mode because it shows up the most number of times

The great thing about this problem is they give you everything you need to solve it easily. so the expression is: 12h+30w12h+30wand so everywhere you have an “h” you place 66. and everywhere you have a “w” you place 33. then the expression will look like this: 12(66)+30(33)12(66)+30(33)from here you multiply and then add. getting the following of: $785,862hope this