A new young executive is perplexed at the number of interruptions that occur due to employee relations.She has decided to track the number of interruptions that occur during each hour of her day.Over the last month,she has determined that between 0 and 3 interruptions occur during any given hour of her day.The data is shown below. 
On average,she should expect 1.0 interruptions per hour.
Definitions:
Delivery Truck
A vehicle used for transporting goods from one location to another, primarily for business purposes.
Oil Change
A maintenance service performed on vehicles involving the replacement of the engine's oil and oil filter to ensure proper engine function.
Capital Expenditure
A type of spending undertaken by a business to acquire or upgrade physical assets such as property, industrial buildings, or equipment.
Revenue Expenditure
Expenses incurred during the normal course of business operations, which are consumed within the same accounting period.
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