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1. Let the number of chocolate drops in a certain type of cookie have a Poisson distribution. We want the probability that a cookie of t"his type contains at least two chocolate drops to be greater than 0.99. Find the smallest value that the mean of the distribution can take.
2. Compute the measures of skewness and kurtosis of the Poisson distribution with mean µ.
3. On the avrage a grocer sells 3 of a certain article per week. How many of these should he have in stock so that the chance of his running out within a week will be less than 0.01? Assume a Poisson distribution.
4. Let X have a Poisson distribution. If Pr (X = I ) = Pr (X = 3), find the mode of the distribution.
a police commissioner is interested in the number of phone calls into the police dispatcher that result in criminal
listed below are the durations in hours of a simple random sample of all flights of a space shuttle program. find
The airline must sell 150 seats to break even on this particular flight. On what percent of the flights does the airline make money?
a survey revealed that men spend an average of 11.4 min in the shower with standard deviation of 1.8 min. assume a
At one Las Vegas casino, if you net $5 that a 12 will come up as the total points on two dice, and you win, you will get back $50. If any total other than 12 comes up, you get back $0.
a researcher wants to compare how college graduates and college drop-outs feel about the legalization of marijuana. she
Standard deviation of 50. what is the probability that next year the number of burgalaries will be less than 250? less than 300 and more than 350?
A randomly selected full-grown adult female okapi weighs between 425 and 525 pounds?
Manufacturer of guitar amplifiers markets one of its models, Vagabond, at a power rating of 45 watts. GuitarGod magazine suspects that this rating is inaccurate for this year's model of the amp. In a random sample of 32 units of this year's version o..
a random variable x has the following probability distrubution.x fx0 0.081 0.172 0.453 0.254 0.05a. deterime the
of employees in a particular industry 60 are female. if employees are selected one at a time stopping as soon as a
Observations was x ¯ = 119.8 (actually 119.7692), and the 14th observation, somewhat of an outlier, was 158. What is the value of x ¯ for the entire sample?
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