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the durations of calls to a radio talk show are known to be exponentially distributed with a mean of 3 minutesa what is
the life of a particular brand of batteries is exponentially distributed with a mean of 4 weeks you just replaced the
the students in the electrical and computer engineering department of a certain college arrive at the departmental
starting at 7 am buses arrive at a particular bus stop in a college campus at intervals of 15 minutes that is at 7 am
the time it takes a bank teller to serve a customer is uniformly distributed between 2 and 6 minutes a customer has
a certain door can be opened by exactly one of six keys if you try the keys one after another what is the expected
a box contains r red balls and b blue balls an experiment is conducted with the balls as follows a ball is randomly
a student is planning to take the scholastic aptitude test sat exam to gain admission to a top college she hopes to
sam is fond of taking long-distance trips during each trip his car has a tire failure in each 100-mile stretch with a
six applicants for a job were all found to be qualified by the company the company then ranked these applicants in a
the probability of getting a head in a single toss of a biased coin is q in an experiment that consists of repeated
pete makes house calls to give away free books to families with children he gives away books to those families that
the carter family owns a bookstore and their son who just completed an introductory course in probability at a local
a telemarketer is paid 1 for each sale she makes the probability that any call she makes results in a sale is 06a what
there are 50 states in the united states and each state is represented by 2 senators in the us senate a group of 20 us
a professor provides 12 review problems for an exam and tells the students that the actual exam will consist of 6
the number of cars that arrive at a gas station is a poisson random variable with a mean of 50 cars per hour the
the number of traffic tickets that a certain traffic officer gives out on any day has been shown to have a poisson
the number of cars that arrive at a drive-in window of a certain bank over a 20-minute period is a poisson random
an equipment consists of 9 components each of which will independently fail with a probability of p if the equipment is
a multiple-choice exam has 6 problems each of which has 3 possible answers what is the probability that john will get 4
a block of 100 bits is to be transmitted over a binary channel with a probability of bit error of pfrac140001 what is
an office has 4 phone lines each is busy about 10 of the time assume that the phone lines act independentlya what is
the laptops made by the xyz corporation have a probability of 010 of being defective as they come out of the assembly
on the average 25 of the products manufactured by a certain company are found to be defective if we select four of