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A company counted the number of their employees in each of the following age classes. According to this distribution, what is the average age of the employees in the company?
Statistics and Probability, Statistics
Let be a random variable with probability function f ( x )=144/205 x^ 2 , where x =1,2,3,4. (a) Find the expected value of X (b) Find the expected value of Y =2 X +3
If an Urn1 contains 6purle balls and 4red balls. And Urn2 contains 4purple balls and 6 red balls. Urn3 contains 4purple balls and 5red balls. If one of the urns is selected at random and a ball is drawn, what is the prob ...
1. Suppose that a company selects two people who work independently inspecting two-by-four timbers. Their job is to identify low-quality timbers. Suppose that the probability that an inspector does not identify a low-qua ...
In a class there are 7 girls and 5 boys. The median age of the 7 girls is 12 and the median age of the 5 boys is 14. Additionally, you know that there are 3 girls with age greater than 14 and 2 boys with age less than 12 ...
Can a business have too much money in Cash, meaning cash on hand as well as in checking and savings accounts? What if a business had 100 million dollars in these cash accounts but only needed half of that for what Keynes ...
It has been a bad day for the stock market and you have heard that only 30% of all stocks gained value. Suppose you have a portfolio of 10 securities and assume a binomial distribution for the number of your stocks that ...
According to national data, about 14% of American college students earn a graduate degree. Using this estimate, what is the probability that exactly 24 undergraduates in a random sample of 200 students will earn a colleg ...
Advantage and disadvantage of sole proprietorship than a corporation? Example of a business that is more suitable for both sole proprietorship and corporation structure.
William is interested in knowing whether or not athletics from his team have lower satisfaction with their team on a survey than the known population average survey score of 19 and the known population survey standard ...
A sample of 184 randomly selected students, found that the proportion of students planning to travel home for Thanksgiving is 0.69. What is the standard deviation of the sampling deviation?
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As
