Indicate which panel in Figure 22 best represents the relationships below. Assume that the first term is

Question:

Indicate which panel in Figure 2–2 best represents the relationships below. Assume that the first term is the X variable on the horizontal axis (such that X is the cause and Y is the effect).

a. Population of a city and the cost of a home.

b. The amount of wheat grown on a small farm and the world price of wheat (i.e., how the world price of wheat will change when the small farm grows more wheat).

c. The fine for speeding and the fraction of the population that speeds.

d. The pay for teachers and the number of people who want to become teachers.

Figure 2-3:

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