Income levels would most likely have a skewed distribution as most women make near a certain amount. I would predict the data to be positively skewed, because generally women living in the busy city tend to have high paying or middle income jobs. Hope this helped :)
The answer is 1.38 gallons becuase 12 + 6 = 18 then 18 / 13 is 1.384615385 but you cant write that down so we round to the nearest hundreth and you get 1.38 as your final answer