Do you dislike waiting in line? Supermarket chain Kroger has used computer simulation and information technology to reduce the average waiting time for customers at stores. Using a new system called QueVision, which allows Kroger to better predict when shoppers will be checking out, the company was able to decrease average customer waiting time to just seconds (InformationWeek website and The Wall Street Journal website, January , ). a. Which of the exponential probability distribution is applicable and Show the probability density function of waiting time at Kroger. a. for b. for c. for d. for b. What is the probability that a customer will have to wait between and seconds (to 4 decimals)? c. What is the probability that a customer will have to wait more than minutes (to 4 decimals)?

The Complete question is shown in the explanation below and the solution is given in the picture attached

Step-by-step explanation:

Do you dislike waiting in line? Supermarket chain Kroger has used computer simulation and information technology to reduce the average waiting time for customers at 2300 stores. Using a new system called QueVision, which allows Kroger to better predict when shoppers will be checking out, the company was able to decrease average customer wait­ing time to just 26 seconds (information Week website and the Wall Street Journal web­ site, January 5, 2015).

a) Assume that Kroger waiting times are exponentially distributed. Show the probability density function of waiting time at Kroger.

b) what is the probability that a customer will have to wait between 15 and 30 seconds?

c) what is the probability that a customer will have to wait more than 2 minutes?

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

360/29

step-by-step explanation: