Answer
$P(10)=90$
Work Step by Step
Substitute $x=10$
$\begin{align}
& P\left( 10 \right)=\frac{100\left( 10-1 \right)}{10} \\
& =90
\end{align}$
Thus, given a disease that smokers are 10 times more likely to die from than non-smokers, we see that 90% of deaths are related to smoking.
