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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 distribution of the number of walnuts per container for $20$ containers at a grocery store.

How many of these containers of walnuts contain exactly $78$ walnuts?

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Explanation

Choice B is correct. The height of each bar in the graph shown represents the number of containers that contain the number of walnuts specified at the bottom of the bar. The bar for $78$ walnuts has a height of $7$ . Therefore, $7$ of these containers of walnuts contain exactly $78$ walnuts.

Choice A is incorrect. This is the number of containers that contain exactly $75$ walnuts, not $78$ walnuts.

Choice C is incorrect. This is the total number of containers of walnuts represented in the bar graph, not the number that contain exactly $78$ walnuts.

Choice D is incorrect. This is the number of walnuts in a container that contains exactly $78$ walnuts, not the number of containers that contain exactly $78$ walnuts.