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

Multiple Choice

If the random variable X is exponentially distributed with parameter $\lambda$ = 1.5,then the probability P(2 $\le$ X $\le$ 4) ,up to 4 decimal places,is

A) 0.6667
B) 0.0473
C) 0.5000
D) 0.2500