Suppose the Lorenz curve for the distribution of income of a certain country is given by 
Find the Gini coefficient of income. Round your answer to three decimal places.
?
A. 2.632
B. 2.896
C. 4.264
D. 5.632
E. 0.264
Answer: E
Mathematics
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Solve the problem.Find the area between y = (x - 4)ex and the x-axis from x = 4 to x = 9.
A. 4e9 B. e9 - e4 C. 4e9 + e4 D. e9 + e4
Mathematics
Either the dimensions of two matrices or the matrices themselves are given. Find the dimensions of the product AB and the product BA. If either is not defined, say so.A = 
; B = 
.
A. AB is 2 × 2; BA is 1 × 1. B. AB is not defined; BA is 2 × 2. C. AB is 1 × 1; BA is not defined. D. AB is 1 × 1; BA is 2 × 2.
Mathematics
Simplify the complex fraction.
A. 36
B. 
C. 1
D. 
Mathematics
For the given point, find the coordinates of the image point under a half-turn about the origin.(?2, 3)
A. (2, ?3) B. (2, 3) C. (?3, 2) D. (3, ?2)
Mathematics