Consider the following exponential probability density function.
f(x)=(1)/(4)e^(-(x)/(4)), for ,x>=0
a. Which of the following is the formula for P(x<=x_(0)) ?
P(x<=x_(0))=e^(-(z_(0))/(4))
P(x<=x_(0))=1-e^(-(z_(0))/(4))
3P(x<=x_(0))=1-e^(-x_(0))
b. Find P(x<=1) (to 4 decimals).
c. Find P(x>=3) (to 4 decimals).
d. Find P(x<=5) (to 4 decimals).
e. Find P(1<=x<=5) (to 4 decimals).