35.937 inches cubed
To find volume: <em> length </em><em>x</em><em> width </em><em>x</em><em> height</em>
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Recall that the PDF is given by the derivative of the CDF:
The mean is given by
The median is the number
such that
. We have
but both roots can't be medians. As a matter of fact, the median must satisfy
, so we take the solution with the negative root. So
is the median.
[] The fractions are
[] I see that 21 is a multiple of 7, so this one will be simple to solve.
-> 21 / 7 = 3, so we can do the following:
[] Now they have a common denominator of <u>21</u>
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather