A company is studying the number of monthly absences among its 125 employees. The following probability distribution shows the likelihood that people were absent 0, 1, 2, 3, 4, or 5 days last month. 
What is the variance of the number of days absent?
Definitions:
Base Rate
The minimum interest rate set by a central bank, which serves as a benchmark for banks and other lenders when setting their interest rates.
Risk Premium
The extra return above the risk-free rate that investors require as compensation for the risk of an investment.
Maturity Structure
The categorization of a company's or government's debt based on the lengths of time until those debts are due or mature.
Interest Rates
The fraction of a total amount of money that is levied as a fee for borrowing it, signifying the expense of taking out a loan or the earnings from putting money into savings.
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