Bar Graph - Distorting Data: Consider the bar graph below depicting the percenta

Question

Bar Graph - Distorting Data: Consider the bar graph below depicting the percentage of Americans who are in favor of legalizing marijuana divided by region.

(a) Which one of the following statements is a valid conclusion based on the results depicted in this bar graph?

The percentage of people who favor legalizing marijuana in the West is more than twice that in the East.The percentage of people who favor legalizing marijuana in the West is more than twice that in the Midwest.    The percentage of people who favor legalizing marijuana in the West is more than twice that in the South.None of these are valid conclusions.

(b) What is misleading about this bar graph?

The y-axis does not start at zero.The lengths of the bars are not proportional to the numerical values they represent.     The differences are greatly exaggerated by the lengths of the bar graphs.All of these contribute to the visual distortion of the data.

Explanation / Answer

A) None of these are valid conclusions

B) All of these contribute to the visual distortion of the data

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