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The salaries at a corporation are normally distributed with an average salary of $19,000 and a standard deviation of $4,000.
a. What is the probability that an employee will have a salary between $12,520 and $25,480?
b. What is the probability that an employee will have a salary more than $11,880?
c. What is the probability that an employee will have a salary less than $28,440?
Find the reliability of bulb after 20 hours - Given that it lasts 20 hours, find the probability that the bulb lasts another 20 hours.
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a random sample of 5 homes in newberry florida had a mean of 169900 and a standard deviation of 21756. construct a 95
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a population has a known standard deviation of 25. a simple random sample of 49 items is taken from the selected
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