20. Scenario: Life Expectancy. It is known that the life expectancy of Western E
ID: 3222525 • Letter: 2
Question
20. Scenario: Life Expectancy. It is known that the life expectancy of Western Europeans varies with the country of residency. One economist knows that the gross domestic product (GDP) of the countries in Europe vary and wonders if GDP affects life expectancy. The following set of data gives the per capita gross domestic product (GDP) and the life expectancy (Life exp) of 10 Western European countries. Descriptive Statistes 778 77.75 079 Life exp Dimes z 10 728 GDP a) What is the predictor variable, response variable? b. Gross domestic product, life expectancy. a. Country, life expectancy. d. Life expectancy, country. c. Gross domestic product, $1000's. b) What is the type of association? f. Negative. e. Positive. h. No association. g. Curvilinear. c) What is the correlation coefficient? j. 1.32 i r- 0.09 1 r -0.5 kt.r 0.81 d) What is the regression equation? n. y-68.71 0.42 x m. y 0.42 68.71 x. p, y -0.42 69.35x o. 69.35 0.42 xExplanation / Answer
A- b is correct option for it
B- e option is correct because as GDP increasees life expectancy is also increasees.
C- k option is correct because correlation is very high and positive.
D- n option is correct because slop is very high and option n has highest slop.
E- n option is correct. We can put X=21 in n option of d part.
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