Well average means mean so we have to find the mean of the numbers in the data set. Our numbers are -12,12,-4, and finally 4. When we add all of them up we get 0 and we have to divide 0 by the 4 thermoters and your answer is 0. if this is confusing just leave a comment and ill try to explain better
The things written at the end are options for what the answer could be. So the real answer will be found this way: if the total amount of degrees Fahrenheit was -16, and that was the amount added from four thermometers, then you will need to divide -16 by 4, which is -4. So the answer is: -4 degrees fahrenheit.
