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From a group of 8 men and 7 women, a committee of 6 is chosen.
(a) In how many ways can the committee be chosen so that the same amount of men and women are chosen?
(b) What is the probability that the same amount of men and women are chosen?
inter arrival time of busses of route 49u of milwaukee bus system follows an exponential distribution. the probability
It has been observed that the number of particles emitted by a radioactive substance which reach a given portion of space during time t follows closely the Poisson distribution with parameter l. Calculate the probability that: i) No particles reach..
Blood tests showed a sample mean of 8.1 pH with sample standard deviation s = 0.6 pH. Use a 5% level of significance to test the claim that the drug has changed (either way) the mean pH of the blood.
Customers arrive at a two-server system according to a Poisson process having rate λ = 5. An arrival ?nding server 1 free will begin service with that server.
In what situations might you use probability as a manager to approach business-related problems? What are the advantages to using probability concepts in business decisions?
Compute the value of the test statistic for this hypothesis test. Using the p-value, at 95% confidence, test to determine whether the measures were effective in reducing the average price.
What is the p-value? Use a .05 level ofsignificance. What is your conclusion?
Using the data in table 2 of Schneider et al, estimate the probability that a respondent with the following characteristics will be a PTA member:
Compute the z-scores for each of the five data values. Which of the following is the correct set of z-values?
For an arbitrary random variable X, use the Chebyshev inequality to show that the probability that X is more than k standard deviations from its expected value E[X] satisfies
The Appliance Center has six sales representatives at their North Jacksonville outlet. Listed below is the number of refrigerators sold by each last month.
What is the event corresponding to the above system failing during one period of operation and what is the event corresponding to the above system functioning properly during one period of operation?
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