A study was conducted on three types of home siding and the type of damage done to the siding by woodpeckers. Each hole made by a woodpecker was classified as either drumming (territorial signaling), foresting (looking for food), or nesting. The following bar chart shows the relative frequency of the holes for each type of siding. Which of the following statements is supported by the bar chart? The proportion of holes created for drumming is the same for all three siding types. The proportion of holes created for drumming is greatest for grooved plywood. The proportion of holes created for drumming is least for grooved plywood. The number of holes created for drumming is least for grooved plywood. The number of holes created for drumming is greatest for nonwood.

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Bar Graphs

A bar graph is a chart or graphical representation of data. A bar chart, also known as a bar graph, is a graph or chart that displays categorical data using rectangular bars with heights or lengths equal to the values they represent. Typically, bar graphs show categorical and numerical variables grouped in class intervals. A bar graph is useful for comparing and analyzing a set of data.