Okay I have homework for Science and they are asking me to give them the average. My set of data had three trials and at the end I have the average of all three of the trials. Do I add all of the numbers plus the average and then divide it by 3 or 4? thanks....
2007-10-28 11:50:40 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Add the results then divide that sum by the number of trials. 3 in your case. Thats your average.
I'm a bit confused though that you say "at the end I have the average of all three trials." If they are asking for the average, why are they giving you the average?
2007-10-28 11:54:43 · answer #1 · answered by Milo 3 · 0⤊ 0⤋
Just add the averages and divide by 3. You are, in effect, finding the average of the averages. You can verify this by adding all the individual numbers, then dividing by the number of numbers. Compare this to adding the averages and dividing by the number of averages
2007-10-28 12:00:59 · answer #2 · answered by Grampedo 7 · 0⤊ 0⤋
Add the three averages and divide by 3.
2007-10-28 11:54:46 · answer #3 · answered by ironduke8159 7 · 0⤊ 0⤋