A college professor collected data on the number of hours spent by his 100 students over the weekend to prepare for Monday's Business Statistics exam. He processed the data by Excel and the following incomplete output is available. 
The coefficient of variation in the data is ________.
Definitions:
Reduced Absenteeism
A decrease in the frequency of employees failing to report for work as scheduled, benefiting both productivity and morale.
Attract Talent
The strategies and measures taken by organizations to entice highly skilled professionals to work for them.
Job Enrichment
A method to improve job satisfaction by adding tasks that increase the responsibility and opportunity for growth of the employee.
Horizontal Loading
The process of adding more tasks of similar complexity to an individual's job role to increase variety without necessarily increasing responsibility.
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