A graph for interval or ratio data with adjacent bars is a

A graph for interval or ratio data with adjacent bars is a

• A. Bar Graph
• B. Histogram
• C. Pie Chart
• D. Scatter Plot

Answer: (B)

When you want to visualize how a continuous variable is distributed, you use a histogram. For interval or ratio data, the values form a continuous scale, so you group the data into adjacent bins (ranges) and draw a bar for each bin. The height reflects how many observations fall into that range (or the density if you’re using a density histogram). The bars are placed next to each other to show the continuity of the data; if there were gaps between bars, it would suggest the data are categories or discrete values rather than a continuous spread. A bar graph, by contrast, is designed for categorical or discrete data, and bars typically show separate categories with spaces between them. A pie chart depicts parts of a whole as portions of a circle, not a distribution along a numeric axis. A scatter plot displays the relationship between two quantitative variables using points on a plane. Therefore, for interval or ratio data with adjacent bars, a histogram is the appropriate choice.

When you want to visualize how a continuous variable is distributed, you use a histogram. For interval or ratio data, the values form a continuous scale, so you group the data into adjacent bins (ranges) and draw a bar for each bin. The height reflects how many observations fall into that range (or the density if you’re using a density histogram). The bars are placed next to each other to show the continuity of the data; if there were gaps between bars, it would suggest the data are categories or discrete values rather than a continuous spread.

A bar graph, by contrast, is designed for categorical or discrete data, and bars typically show separate categories with spaces between them. A pie chart depicts parts of a whole as portions of a circle, not a distribution along a numeric axis. A scatter plot displays the relationship between two quantitative variables using points on a plane. Therefore, for interval or ratio data with adjacent bars, a histogram is the appropriate choice.