To determine if the Earth is warming or cooling, scientists look at average temperatures. To get an "average" temperature, scientists take the warmest and the coolest temperatures in a day, and calculate the temperature that is exactly in the middle of those high and low values. This provides an average temperature for a day. These average temperatures are then calculated for spots all over the Earth, over an entire year.
I thought that was the Median temperature.. i thought the average was the total temperatures in a given sampling divided by the total numbers of samples taken
if the bulk of the day was at 70* F but part of the day for 2 seconds was at 0* F and 100* F that doesn't mean the average temperature was 50
go back to Math class nasa
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