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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.
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 corre
demand function(qd)=650-5p-p2 where p=10
verify Leibniz rule for differentiation under the integral sign for the following function 2x^2+3xy+3y^2
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 can a person achieve his goal for development?Explain it with 5 examples.
prove that summation k =0 and summation kxi=1
Give the mathematical formula of calculate the slope of a line?
what is role of education in economic development?
#qu3. People educational achievement is affected, among other factors, by the demographic characteristics of their households; the following multiple regression model was estimated
You are considering a new line of consumer products. You expect revenues of $14 million in each of the next ten years, while expenses are half of revenues (all cash flows are assum
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