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Consider a chess player participating in a two-game pre-tournament quali?cation series. From past records in such games, it is known that the player has a probability pW = 0.75 of winning, a probability pD = 0.2 of drawing, and a probability pL = 0.05 of losing. If X1 is the number of wins and X2 is the number of draws, obtain the complete joint pdf f (x1, x2) for this player. From this, compute the marginal pdfs, f1 (x1) and f2(x2), and ?nally obtain the conditional pdfs f (x1|x2 ) and f (x2|x1).
Nyobia had a population of 3 million in 1985. Assume that this country's population is growing continuously at a 5% annual rate and that Nyobia absorbs 40000 newcomers every year.
Determine the external labor supply available this year in five different states by using statistics from the bureau of labor statistics website(www.bls.gov).
How much net revenue does the state expect, on average from each ticket? What is the risk preference of people who play this lottery?
What type of data would you obtain from a rating scale? Prove an application/example in your response of how this instrument could be used. For what population would you use a graphical rating scale?
A humane society reports that 19% of all pet dogs were adopted from an animal shelter. Assuming the truth of this assertion, find the probability that in a random sample of 80 pet dogs, between 15% and 20% were adopted from a shelter
The calculated p-value for a hypothesis test is 0.084. What decision about the null hypothesis would occur in the following: The hypotheis test is completed at the 0.05 level of significance.
Why is the Central Limit Theorem used?
A gardner plants 12 flowers. It is perdicted that on an average, 15% of the flowers planted will die during the first winter. Using the information above, please answer the following questions:
suppose iq scores were obtained from randomly selected couples. for 20 such pairs of people the linear correlation
an average of 5 calls coming per minute. What is the probability that up to a minute will elapse until 2 calls have come in to the switchboard?
A production process manufactures items with weights that are normally distributed with mean 16 pounds and standard deviation 0.15 pound. An item is considered to be defective if its weight is less than 15.8 pounds or greater than 16.2 pounds.
for a certain river suppose the drought length y is the number of consecutive time intervals in which the water supply
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