To find the slope you use rise over run so you take one dot (2,-5) and go up 2 units so that it would get one the same line as the other dot (5,-3) and then go to the right 3 units to get you to the exact spot that the dot is
The best estimate of the population mean is the sample mean
first calculate the sum of all samples: 32+24+14+34+26+27+31+16+18+26=248 then divide by the amount of samples to get the samples mean: 248/10=24.8 miles per gallon
