The mean electrix bill for family C is approximately: $33., $21., $28., and $25. greater than the mean electric bill for family A. This difference is about 2 1/2 times, 3 1/2 times, 2 times, or 1 1/2 times. (part A: choices r $33, $21, $28, & $25. Part B: choices r 2 1/2, 3 1/2, twice, or 1 1/2 times. I still need the answer as well. mean of family C electric bill is $1,339.60 and family A: $943.00. )