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Answer (Choose 1 answer)
(See picture)
A. (ii)
B. (iv)
C. (i)
D. (iii)
The probability density function of the time customers arrive at a terminal (in minutes after 9:00 A.M.) is given by
f(x)=\frac{1}{9}e^{-x/9}, x>0
Determine the cumulative distribution function F(x).
(i) 1 e-x/9, x>0
(ii) 1 (1/9)e-x/9, x>0
(iii) e-x/9, x>0
(iv) (1/9)e-x/9, x>0
