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a share of common stock in the pilsdorff beer company has a price yn on the nth business day of the year finn observes
the pilsdorff beer company runs a fleet of trucks along the 100 mile road from hangtown to dry gulch and maintains a
a students score on a particular calculus final is a random variable with values of 0 100 mean 70 and variance 25a
let x be a continuous random variable with mean micro 10 and variance sigma2 1003 using chebyshevs inequality find an
a fair coin is tossed repeatedly before each toss you are allowed to decide whether to bet on the outcome can you
we have two coins one is a fair coin and the other is a coin that produces heads with probability 34 one of the two
1 a fair coin is tossed 100 times the expected number of heads is 50 and the standard deviation for the number of heads
textbook introductory statistics by illowsky and david m laneisbn-10 1938168208isbn-13 978-1-938168-20-8revision
1 a company buys 100 lightbulbs each of which has an exponential lifetime of 1000 hours what is the expected time for
1 assume that the service time for a customer at a bank is exponentially dis- tributed with mean service time 2 minutes
a a die is rolled three times with outcomes x1 x2 and x3 let y3 be the maximum of the values obtained show thatp y3 le
people arrive at a queue according to the following scheme during each minute of time either 0 or 1 person arrives the
consider the following two experiments the first has outcome x taking on the values 0 1 and 2 with equal probabilities
suppose you are standing on the bank of a straight rivera choose at random a direction which will keep you on dry
the pilsdorff beer company runs a fleet of trucks along the 100 mile road from hangtown to dry gulch the trucks are old
1 let x be a random variable with mean micro and variance sigma2 let y ax2 bx c find the expected value of y 2 let
for a sequence of bernoulli trials let x1 be the number of trials until the first success for j ge 2 let xj be the
an urn contains exactly 5000 balls of which an unknown number x are white and the rest red where x is a random variable
1 let x be a random variable with micro ex and sigma2 v x define xlowast x -microsigma the random variable xlowast
suppose we have an urn containing c yellow balls and d green balls we draw k balls without replacement from the urn
write a program to add random numbers chosen from 0 1 until the first time the sum is greater than one have your
a large number n of people are subjected to a blood test this can be administered in two ways 1 each person can be
in a popular computer game the computer picks an integer from 1 to n at random the player is given k chances to guess
1 an insurance company has 1000 policies on men of age 50 the company estimates that the probability that a man of age
you are offered the following game to play a fair coin is tossed until heads turns up for the first time see example 63