A professor of economics at a small Texas university wanted to determine what year in school students were taking his tough economics course. Shown below is a pie chart of the results. What percentage of the class took the course prior to reaching their senior year? 
Definitions:
Job Performance
The extent to which an individual executes their job duties and responsibilities effectively.
Positive Emotions
Feelings that are generally considered beneficial for well-being and happiness, such as joy, gratitude, and contentment.
Tolerate Pain
The ability or capacity to endure discomfort or suffering.
Organizational Commitment
The psychological attachment or loyalty of an employee towards their employer or organization.
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