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PHILADELPHIA (CBS) – Pennsylvania State University is ranked No. 2 in universities most attended by CEOs, according to a new survey. Linkedin surveyed 12,000 member profiles from 20 countries to see what it takes to become a CEO.

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It broke down where and what they studied, the first jobs they had on record, and the positions that they held before jumping to CEO.

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The study found that the top three universities attended by CEOs, according to their Linkedin profile, were Stanford University, Penn State University, and Harvard Business School.

Credit: Linkedin

The top three fields studied were computer science, economics, and business.

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Credit: Linkedin

The research also found that 72 percent of the CEOs were directors for quite a while before becoming CEOs and 80 percent of the CEOs were hired externally.