What is the average of -2.5, 5.2,1.7,-0.8
-2.5+5.2+1.7+-0.8 is 3.6. Divide this number by 4 to get the average.Your answer is 0.9
add all of the data together then divide by how many data points there are, so in this particular instance, divide your total sum by four. Give a man a fish and he'll be fed for a day; teach a man to fish and he'll be fed for a lifetime.
