If the Random Variable X Is Exponentially Distributed with Parameter $\lambda$

Short Answer

If the random variable X is exponentially distributed with parameter $\lambda$ = 1.75, then P(1.5 $\le$ X $\le$ 3.8), up to 4 decimal places, is: $\begin{array}{|l|l|}\hline\text { A. } & 0.0711 . \\\hline \text { B. } & 0.0473 . \\\hline \text { C. } & 0.1184 . \\\hline \text { D. } & 0.4739 \\\hline\end{array}$