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estimates published by the world health organization state that one out of every three workers may be toiling away in
based on the survey conducted by a municipal administration in the netherlands monday appeared to be managements
a recent survey published in businessweek concludes that gatorade commands an 83 share of the sports drink market
the time between customer arrivals at a bank has an exponential distribution with a mean time between arrivals of three
lightbulbs manufactured by a particular company have an exponentially distributed life with mean 100 hoursa what is the
the bombay company offers reproductions of classic 18th- and 19th-century english furniture pieces which have become
according to an article in usa today 90 of americans will suffer from high blood pressure as they age out of 20
the number of orders for installation of a computer information system arriving at an agency per week is a random
consider the situation in the previous problem and assume that the distribution holds for all weeks throughout the year
an analyst kept track of the daily price quotation for a given stock the frequency data led to the following
in given problem suppose that the company makes 1200 on each order but has to pay a fixed weekly cost of 1750 find the
out of 140 million cellular telephone subscribers in the united states 36 million use verizon6a ten wireless customers
an advertisement claims that two out of five doctors recommend a certain pharmaceutical product a random sample of 20
five percent of the many cars produced at a plant are defective ten cars made at the plant are sent to a dealership let
refer to the situation in the previous problemsuppose that the cars at the plant are checked one by one and let x be
suppose that 5 of a total of 20 company accounts are in error an auditor selects a random sample of 5 out of the 20
the time in minutes necessary to perform a certain task has the uniform 5 9 distributiona write the probability density
a computer laboratory in a school has 33 computers each of the 33 computers has 90 reliability allowing for 10 of the
a commercial jet aircraft has four engines for an aircraft in flight to land safely at least two engines should be in
an investment portfolio has equal proportions invested in five stocks the expected returns and standard deviations both
a graduating student keeps applying for jobs until she has three offers the probability of getting an offer at any
a real estate agent has four houses to sell before the end of the month by contacting prospective customers one by one
a graduating student keeps applying for jobs until she gets an offer the probability of getting an offer at any trial
a shipment of pins contains 25 good ones and 2 defective ones at the receiving department an inspector picks three pins
a committee of 7 members is to be formed by selecting members at random from a pool of 14 candidates consisting of 5