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a lumber grading system is known to be defective 20 of the time normally 20 of the lumber that passes through is
a forest type consists of three species of trees25 are douglas-fir40 are hemlock35 are western red cedara what is the
the probability that a shot will hit the target is 002 successive shots are independent of each other what is the
suppose it is known that the response time of healthy subjects to a particular stimulus is a normally distributed
a survey of a group of college students was done to find out how students get to school for the school year 15 of those
based on college data scores on a certain test can be seen as normally distributed that can show the mean of 1524 and a
the number of stomata tiny openings on the leaves of a particular mutant of arabidopsis a common experimental plant is
a data firm records a large amount of data historicallynbsp10 of the pages of data recorded by the firm contain
estimate the proportion of people in various states that will use the courior services suppose the true proportion is
assume that the critic finds that 50 percent of the movies have positive comments about the plot 50 percent have
suppose metal shafts produced have a standard deviation of 28 and a mean diameter of 210 inches if 84 shafts are
a car gets involved in an accident 80 of the time if it is defective if it is not defective the probability reduces to
a manufacturer obtains clock-radios from three different subcontractors 10 from a 30 from b and 60 from c the defective
a 1995 study by the school of public health reported thatnbsp87 of male students who live in a fraternity house are
a study showed that in 1990 47 of all those involved in a fatal car crash wore seat belts of those in a fatal crash who
thirty percent of the managers in a certain company have mba degrees as well as professional training eighty percent of
using chebysheffs theorm you have concluded that at least 7766 of the 3075 runners took between 605 and 875 minutes to
what is the probability that a randomly selected person will have a birthday in november assume that this person was
if a coin is tossed 5times and then a standard six-sided die is rolled 2 times and finally a group of two cards are
a box contains 14 large marbles and 11 small marbles each marble is either green or white 8 of the large marbles are
out ofnbsp350nbspapplicants for a jobnbsp158nbspare female andnbsp66nbspare female and have a graduate degreestep 1 of
the probability of a potential employee passing a training course is 86 if you selected 15 potential employees and gave
at station a the egg hatch rate computed from a set of 100 eggs at a time is known to follow approximately a normal
according to an article in the american heart associations publication circulation 24 of patients who had been
please explain which formula i should use to complete the following probability questionthe probability that a family