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1 for a normal random variable with mean 650 and standard deviation 40 find the probability that its value will be
1 if x is normally distributed with mean 500 and standard deviation 20 find the probability that x will be above 5552
1 a normal random variable has mean 0 and standard deviation 4 find the probability that the random variable will be
the time it takes an international telephone operator to place an overseas phone call is normally distributed with mean
the number of votes cast in favor of a controversial proposition is believed to be approximately normally distributed
under the system of floating exchange rates the rate of foreign money to the us dollar is affected by many random
wine spectator rates wines on a point scale of 0 to 100 it can be inferred from the many ratings in this magazine that
the weights of domestic adult cats are normally distributed with a mean of 1042 pounds and a standard deviation of 087
daily fluctuations of the french cac-40 stock index from march to june 1997 seem to follow a normal distribution with
according to global analyst olivier lemaigre the average price-to-earnings ratio for companies in emerging markets is
q 1 a cars on a toll road arrive at the payment booth at an average rate of 80 per hour what is the probability of no
based on the research of ibbotson associates a chicago investment firm and prof jeremy siegel of the wharton school of
a manufacturing company regularly consumes a special type of glue purchased from a foreign supplier because the
corporate raider asher adelman teaching a course at columbia universitys school of business made the following proposal
an applicant for a faculty position at a certain university is told by the department chair that she has a 095
the ratings of viewership for the three major networks during prime time recently were as follows also shown is the
rate nfrequency325333073351534013345203501835517360336533701adoes it seem that the rates are normally distributed
a major ski resort in the eastern united states closes in late may closing day varies from year to year depending on
ten percent of the items produced at a plant are defective a random sample of 20 items is selected what is the
lee iacocca volunteered to drive one of his chryslers into a brick wall to demonstrate the effectiveness of airbags
in the previous problem the time that it takes the airbag to completely fill up from the moment of activation has an
the time interval between two successive customers entering a store in a mall is exponentially distributed with a mean
the dutch consumer-electronics giant philips is protected against takeovers by a unique corporate voting structure that
according to a front-page article in the wall street journal 30 of all students in american universities miss classes
according to an article in usa today 60 of 7- to 12-year-olds who use the internet do their schoolwork on lineif 8 kids