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:
Book Value
The value of a company or asset according to its financial statements, calculated by taking the total assets minus the liabilities and intangible assets.
Mortgage Payable
A liability account on the balance sheet representing the amount owed to a lender for property purchased.
Market Value
The present-day trading price for assets or services available in the open market.
Book Value
The net value of a company's assets as found on its balance sheet, which is often different from its market value.
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