Answer:
The correct answer is 0.886.
Step-by-step explanation:
An exponential function with parameter K is given by
g (x) = K × [tex]e^{-Kx}[/tex] for x > 0.
If we put the value of K = 1, we get the given function f (x) = [tex]e^{-x}[/tex] for x > 0.
Now the cumulative distribution of an exponential function g is given by integrating the function g with respect to x.
G (x; K) = 1 - [tex]e^{-Kx}[/tex] for x > 0.
The cumulative distribution function of f is given by
F (x; K) = 1 - [tex]e^{-x}[/tex] for x > 0.
The value of cumulative function at x = 2.17 is given by 0.886.
