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a) Explain what is calculated by a correlation coefficient.b) Why do economists commonly find regression a more useful tool than correlation?c) In a sample of 102 men the correlation among age and monthly donations to charity is found to be 0.2.Test whether this correlation is significantly among from zero and comment on your result.
Over the next two years, Susan's income will be $33,000 in the first year and $33,000 in the second year. She can both borrow and lend money at the 10% of annual interest. (a) W
Determine the four stationary points of the function Z= 2x 3 +y 3 -18x -12y +50 according to whether they define a maximum, minimum, or saddle point.
How to test the linear regression?
let y denote the number of "heads" that occur when two coins are tossed
Let W be a random variable such that Supp (W) = {2, -1, 0, 1, 2 } and What is p? Define U = W 2 . What is Supp (U) and fU (u) = Pr [U = u] for u ∈ Supp (U)? Compute E [W] a
advantages and disadvantages
A shok question #Minimum 100 words accepted# when did the most recent shock to the crude oil market occur
How Has Quantitative Analysis Changed The Current Scenario In The Management World Today?
when is an econometric model said to be simple and naive
Discuss the descriptive statistics of total government expenditures and per capita government expenditures. Plot their histograms and comment.
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