Professors at a local university earn an average salary of $80,000 with a standard deviation of $6,000. The salary distribution cannot be regarded as bell-shaped. What can be said about the percentage of salaries that are less than $68,000 or more than or more than $92,000? choices belowa. It is at least 75 percent. b. It is at least 55 percent. c. It is at least 25 percent. d. It is at most 25 percent.
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