Revision as of 10:45, 3 May 2023 by Admin (Created page with "'''Solution: A''' The expected unreimbursed loss is <math display = "block"> \begin{align*} \int_0^d x \frac{1}{450} dx + \int_d^{450} d \frac{1}{450} dx = \frac{d^2}{900} +...")
Exercise
ABy Admin
May 03'23
Answer
Solution: A
The expected unreimbursed loss is
[[math]]
\begin{align*}
\int_0^d x \frac{1}{450} dx + \int_d^{450} d \frac{1}{450} dx = \frac{d^2}{900} + d \frac{450-d}{450} = \frac{1}{900}(900d -d^2) = 56 \\
d^2 - 900d + 50400 = 0 \\
d = \frac{900 ± \sqrt{900^2 - 201600}}{2} = \frac{900-780}{2} = 60.
\end{align*}
[[/math]]