In a company with 20 employees, there are 7 earning $10/hour, 3 earning $12/hour, 4 earning $15/hour, 2 earning $20/hour,...
katgroIn a company with 20 employees, there are 7 earning $10/hour, 3 earning $12/hour, 4 earning $15/hour, 2 earning $20/hour, and 4 earning $24/hour. One person from the company is selected at random.
a. What is the expected value of the person’s salary?
b. What is the variance?
c. What is the standard deviation?
13 years ago
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