A company's managers evaluated their employees into three classes: excellent performance, good performance, and poor performance. The following is a frequency distribution of the results. What is the probability that a randomly selected employee was rated excellent or good?

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A company's managers evaluated their employees into three classes: excellent performance, good performance, and poor performance. The following is a frequency distribution of the results.  What is the probability that a randomly selected employee was rated excellent or good?

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The Answer of A company's managers evaluated their employees into three classes: excellent performance, good performance, and poor performance. The following is a frequency distribution of the results.  What is the probability that a randomly selected employee was rated excellent or good?

A Company's Managers Evaluated Their Employees into Three Classes: Excellent