Answer to your problem is:
18 1/8
Since the mean is greater than the median, I'd expect the distribution curve to be skewed in the positive direction. In other words, there a few large outliers but fewer small outliers. It would be helpful if the answer choices were provided though.
Half of 27 would be 27/2 which is 13.5
The answer is 2.67 seconds per second when rounded but 2.66666...
What you have written here is an equation.
You can define as
a2+b2=y
If you want to derive a^2+b^2 from ( a+b)^2
(a+b)2=a2+b2+2ab
Ora2+b2=(a+b)2−2ab
