-21/10 or -2&1/10 I used my calculator
3-83= 80
80 divided by 2 is 40
the answer is 40
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