Detailed Solutions to Practice #10

If you had difficulty with any of the items in this practice, read the detailed solutions given on this page. You can either scroll through all the solutions or select the specific one you wish to view.

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The answers to these questions are based on the graph below.

Merchandise Exports, 1993
(billions of dollars)

 Item 1: Approximate the value of Italy's merchandise exports. return to top

 Estimating numbers off a bar graph is only an approximation. Given the scale of the graph we cannot determine the exact amount of merchandise exports. If we look at the graph we can estimate the amount of merchandise exports to be approximately 180. However, you could have estimated anywhere from 175 to 185. Merchandise Exports, 1993 (billions of dollars)

 Item 2: Which two nations have approximately the same value of exports? return to top

Since the length of the bars represent the amount of merchandise exports, we need to find the two that have approximately the same bar length.
 If we look at the graph we can see that the two that have about the same length are Japan and Germany. Since the bars have the same length, then they export the same value of merchandise. No other bars are the same length. Merchandise Exports, 1993 (billions of dollars)

 Item 3: Which country has exports that value more than twice as much as France? return to top

To find this answer we need to determine the length of France's bar, and then find a bar that is more than twice that length.
 If we look at the graph, we can see that France has approximately 220 billion dollars worth of merchandise exports. This means we need to find a country whose merchandise exports are over 440 billion dollars. The only country that has merchandise exports over 400 billion dollars is the United States. Merchandise Exports, 1993 (billions of dollars)

 Item 4: If the exports of France and Italy were combined, would they total more or less than the exports of the United States? return to top

To find this answer we need to determine the length of the bars for France, Italy, and the U.S. From the graph we can see that:
 France's length is about 220. Italy's length is about 170, and The U.S.'s length is about 480. . Merchandise Exports, 1993 (billions of dollars)

Since 220 + 170 = 390, and 390 < 480, the combined exports of France and Italy are still less than that of the United States.

 Item 5: Now much more, in billions of dollars, does the United States export than Canada? return to top

If we look at the bar graph we find that Canada has 150 billion in merchandise exports. The U.S. has 480 billion in merchandise exports. To determine how much more the U.S. exports in merchandise:

U.S. - Canada = 480 - 150 = 330

So the U.S. has 330 billion dollars in more merchandise exports.

IMPORTANT: If you feel comfortable with the material in this unit, move on to the next unit. If you feel you need more review than is offered by this tutorial, you should contact your professor for where to find help.