Hello there!
Mean is the average of a set of numbers.
To find the mean, we have to add all the numbers and divide by how many there are.
Add: 68 + 55 + 72
Equals: 195
However, we have to find the mean of the 3 rounds in the 4th fight.
Add: 55 + 42 + 40
Equals: 137
Then, we divide it by 3.
Equals: 45.7
Next, add it to 195 since it was of 3 separate fights.
195 + 45.7 = 242.5
Lastly, divide it by 6 since there were 6 numbers in the data set.
Divide: 242.5/6
Equals: 40.42
Therefore, our mean for the 4 fights is 40.42 or 40.
There's another answer that we can get by simply adding up all the numbers and dividing it by 6.
Add: 68 + 55 + 72 + 55 + 42 + 40
Equals: 332
Then, we divide by 6.
Divide: 332/6
Equals: 55.33
So, yeah 55.33 would be the better mean then 40 since 40 makes it seem very low.
