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Topic Advance Statistics Doctoral
5 buildings are separated by the mean of (3,2) in meters and the probability of the building is 0.7 per number of floors. If the tallest building has a height and width of (100,25)meter. Assume that every floor are in 4.2 meters height. The building had a series pattern from tallest to the smallest one.
A. Find the series of the building
B. The spaces between the buildings
C. The probability of the smallest building
D. The probability of the middle building
E. The mean height of the buildings
F. The average width of the buildings
A simple linear regression model was used to describe the relationship between y = hardness of molded plastic and x = amount of time elapsed
Construct a 99% confidence interval for µ assuming n = 47. Is the width of the 99% confidence interval larger than the width of the 95% confidence interval.
If you were offered the chance of an investment in a mango orchard in North Queensland and you were promised a return of between
Prove that any sequence that converges in the mean square sense must also converge in probability. Hint: Use Markov's inequality.
The following data are credit default swap values:14 6, 10, 12, 13, 18, 21 (in trillions of dollars). Draw a pie chart of these amounts. Find the mean and median.
four women w1 w2 w3 and w4 check their hats and the hats are returned in a random manner. let the sample space be the
Thus, depending on the value of the correlation coefficient ρ, the joint PDF of X1 and X2 may resemble one of the graphs of Figure 4.5 with X1 = X and X2 = Y.
Explain why researchers do not use random samples. How are they able to generalize their results?
The annual real return Y on the Diversified International Fund has mean 11% and standard deviation 17%, and the correlation between X and Y is 0.6. The return on Linda's portfolio is R = 0.7X + 0.3Y. What are the mean and standard deviation of R?
one prominent physician claims that 70 of those with lung cancer are chain smokers. if his assertion is correct the
The probability of selecting each of the roads are the same. It is 1/3. If the prisoner succeeds on her escape, what is the probability that she made good on her escape by using road b.
Based on interviews with 80 SARS? patients, researchers found that the mean incubation period was 4.1 ?days, with a standard deviation of 15.3 days.
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