In the figure below, lines a and b are parallel, and lines c and d are parallel.What is th

Distributions A and B in the figure below have

A、the same mean and the same variance.

B、different means and different variances.

C、the same mean, but different variances.

D、different means, but the same variance.

Refer to the figure below, which shows a country’s possible production possibility frontiers and indifference curves. If the country is producing at ________, then moving to ________ will cause utility to ________.

A、point b; point a; increase

B、point a; point b; increase

C、point c; point b; increase

D、point c; point b; decrease

【单选题】In the figure below, the decline in consumer surplus resulting from an increase in price from $5 to $10 is given by the area:

A、FGH

B、CEH

C、FGDC

D、CEGF

What is the area of the triangle in the figure below？

A．4.5

B．9

C．10

D．12.5

E．20

A.BCT

B.HCP

C.FCC

D.BCC

A.a

B.b

C.c

D.d

E.e

A.BCC

B.FCC

C.HCP

D.BCT

A.BCC

B.FCC

C.HCP

D.BCT