Which of the following databases resembles an organizational chart?
A) network database
B) hierarchical database
C) stratified database
D) cluster database
B
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Myra notices that one of her employees has been wasting time and resources by performing a task incorrectly. Which statement is the most effective form of feedback?
What will be an ideal response?
A dry cleaner has a single drive-thru window for customers. The arrival rate of cars follows a Poisson distribution, while the service time follows an exponential distribution
The average arrival rate is 16 per hour and the average service time is three minutes. (a) What is the average number of cars in the line? (b) What is the average time spent waiting to get to the service window? (c) What percentage of time is the dry cleaner's drive-thru window idle? (d) What is the probability there are more than 2 cars at the drive-thru window?