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A retailer sold 50 vacuum cleaners at $90 and 35 vacuum cleaners at $140. Find the weighted mean price of a vacuum cleaner sold by the retailer.
Statistics and Probability, Statistics
Only 35% of the drivers in a particular city wear seat belts. Suppose that 20 drivers are stopped at random what is the probability that exactly four are wearing a seatbelt? (Round your answer to 4 decimal places)
How can a graph or chart of data help you understand the results? What is a frequency table? Describe an example where a frequency table can be used in life.
A quality controller selects 8 items at a predefined interval and found that 75% of the time the item was non-defective. Let "S" represent the occurence of a non defective item. Assuming that this experiment is Binomial: ...
A survey asks 20002000 ?workers, "Has the economy forced you to reduce the amount of vacation you plan to take this? year?" FiftyFifty?-fourfour percent of those surveyed say they are reducing the amount of vacation. Twe ...
A forest type consists of three species of trees: 25% are Douglas-fir 40% are Hemlock 35% are Western Red Cedar a) What is the probability that a tree selected at random will be a Douglas-fir? b) What is the probability ...
A tire company measures the tread on newly-produced tires and finds that they are normally distributed with a mean depth of 0.99mm and a standard deviation of 0.35mm. Find the probability that a randomly selected tire wi ...
I. Using the central limit theorem, what is the distribution of sample means when the population distribution is the following? PART (A) rectangular (a) positively skewed (b) uniformly distributed (c) normally distribute ...
Suppose that 20% of men (P=.20) and 15% of women (P= .15) are carriers of a particular genetic trait. That trait can only be inherited by a child if both parents are carriers. What is the probability that a child is born ...
Strip Mining Inc. can develop a new mine at an initial cost of $11 million. The mine will provide a cash flow of $39 million in 1 year. The land then must be reclaimed at a cost of $32 million in the second year. a. Wha ...
Toy wooden blocks are packaged in bags of 9. One bag contains 6 maple blocks and 3 birch blocks, while a second bag contains 5 maple blocks and 4 birch blocks. One block is drawn from the first bag and placed into the se ...
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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