A study conducted by Uni-Mart, a mail-order department store, reveals that the time intervals in minutes between incoming telephone calls on its toll-free 600 line between 9 A.M. and 2 P.M. are exponentially distributed with probability density function . What is the probability that the time interval between successive calls is more than 6 min? Round your answer to four decimal places.
A) 0.4899
B) 0.8869
C) 0.2950
D) 0.1737
E) 0.8981

Question

A study conducted by Uni-Mart, a mail-order department store, reveals that the time intervals in minutes between incoming telephone calls on its toll-free 600 line between 9 A.M. and 2 P.M. are exponentially distributed with probability density function  . What is the probability that the time interval between successive calls is more than 6 min? Round your answer to four decimal places. ​
A) 0.4899 
B) ​0.8869 
C) ​0.2950 
D) ​0.1737 
E) ​0.8981

Quizplus · Accepted Answer

The Answer of A study conducted by Uni-Mart, a mail-order department store, reveals that the time intervals in minutes between incoming telephone calls on its toll-free 600 line between 9 A.M. and 2 P.M. are exponentially distributed with probability density function  . What is the probability that the time interval between successive calls is more than 6 min? Round your answer to four decimal places. ​
A) 0.4899 
B) ​0.8869 
C) ​0.2950 
D) ​0.1737 
E) ​0.8981

A Study Conducted by Uni-Mart, a Mail-Order Department Store, Reveals