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Problem-Solving and Data Analysis / One-variable data: Distributions and measures of center and spread Difficulty: Easy

The bar graph shows the number of each type of monkey in a sanctuary.

How many more vervets are in this sanctuary than mandrills?

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Explanation

Choice B is correct. It's given that the bar graph shows the number of each type of monkey in a sanctuary. The bar representing the number of mandrills has a height of $5$ ; therefore, there are $5$ mandrills in the sanctuary. The bar representing vervets has a height of $11$ ; therefore, there are $11$ vervets in the sanctuary. Therefore, there are $11 minus 5$ , or $6$ , more vervets in this sanctuary than mandrills.

Choice A is incorrect. This is the number of vervets in the sanctuary.

Choice C is incorrect. This is the number of mandrills in the sanctuary.

Choice D is incorrect and may result from conceptual or calculation errors.