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suppose that x and y arc independent random variables that x has a discrete uniform distribution on the integers 1 2 3
suppose that an electronic system comprises four components and let xjnbspdenote the time until component j fails to
suppose that the joint distribution of x and y is uniform over a set a in the xy-plane for which of the following sets
suppose that an electronic system contains n components which function independently of each other and that the
each student in a certain high school was classified according to his year in school freshman sophomore junior or
suppose that a coin is tossed repeatedly until a head is obtained for the first time and let x denote the number of
consider again the conditions of exercise i of sec 1l0 if a family selected at random from the city subscribes to
three boys a b and c are playing table tennis in each game two of the boys play against each other and the third boy
consider again the markov chain described in exercise 20a determine the probability that the two boys who play against
suppose that two balanced dice are rolled and let x denote the absolute value of the difference between the two numbers
suppose that a box contains 7 red balls and 3 blue balls if 5 balls are selected at random without replacement
if 10 percent of the balls in a certain box art red and if 20 balls are selected from the box at random with
suppose that on each play of a certain game a person will either win one dollar with probability 13 or lose one dollar
suppose that a certain box a contains 5 bans and another box b contains 10 balls one of these two boxes is selected at
suppose that in ten rolls of a balanced die the number 6 appeared exactly three limes what is the probability that the
suppose that 80 percent of all statisticians are shy whereas only 15 percent of all economists are shy suppose also
dreamboat cars are produced at three different factories a b and c factory a produces 20 percent of the total output of
suppose that 30 percent of the bottles produced in a certain plant are defective if a bottle is defective the
suppose that a fair coin is tossed until a head is obtained and that this entire experiment is then performed a second
suppose that a family has exactly n children 2 assume that the probability that any child will be a girl is 12 and
suppose that 13 cards are selected at random from a regular deck of 52 playing cards a if it is known that at least one
suppose that when a machine is adjusted properly 50 percent of the items produced by it are or rugh quality and the
suppose that a box contains five coins and that for each coin there is a different probability that a head will be
suppose that the weather can be only sunny or cloudy and that the weather conditions on successive mornings form a
consider again the markov chain described in exercise l a if it is sunny on a certain wednesday what is the probability