Professors at a Local University Earn an Average Salary of $80,000

question 33

Multiple Choice

Professors at a local university earn an average salary of $80,000 with a standard deviation of $6,000. Using Chebyshev's inequality, the percentage of salaries falling between $68,000 and $92,000 is at least ________.

• A) 68%
• B) 65%
• C) 75%
• D) 95%