Which of the following statements about bar graphs is false? Group of answer choices Adjacent bars touch. It can be used with nominal scores. It can be used with ordinal scores. It has a vertical bar centered over each X
The Correct Answer and Explanation is:
The false statement about bar graphs is:
“It has a vertical bar centered over each X.”
Explanation:
- Adjacent bars touch: This statement is true. In a bar graph, the bars are typically placed adjacent to one another. However, this is only true for certain types of bar graphs like the grouped bar graph, where bars for different categories are displayed next to each other for comparison.
- It can be used with nominal scores: This statement is true. A bar graph is effective for displaying categorical data, including nominal (categorical) scores. Nominal data refers to categories without any inherent order, such as colors or types of fruit. Bar graphs can represent this data where each bar corresponds to a different category.
- It can be used with ordinal scores: This statement is true. Bar graphs can also be used to display ordinal data, which is data that has a meaningful order but does not necessarily have equal intervals between categories, such as rankings or levels of satisfaction. In this case, the bars will still be placed next to each other, but the order is meaningful, and the bars will reflect this sequence.
- It has a vertical bar centered over each X: This statement is false. In a typical bar graph, especially for categorical data, the bars are not necessarily “centered” over each X. The X-axis generally represents categories, and the bars are placed based on the value of the corresponding category, not necessarily aligned in the way described. In some cases, if the X-axis represents discrete values, bars can be centered over the X-ticks, but this isn’t always the case, especially when displaying continuous data or when there’s space between bars.
Thus, the fourth statement about bar graphs is false because bar placement isn’t always centered or uniform in all types of graphs.
