Data Graphs

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Graphs are beneficial because they summarize and display information in a manner that is easy for most people to comprehend. Graphs are used in many academic disciplines, including math, hard sciences and social sciences. They make appearances in corporate settings, serving as useful tools to convey financial information and facilitate data analysis.

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  • When Do You Use a Bar Graph?

    Q: When Do You Use a Bar Graph?

    A: A bar graph is used to compare items between different groups and track changes over a period of time. Bar graphs are best used for changes that happen over a large amount of time instead of just months or weeks.
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  • Why Are Points Connected in a Line Graph but Not in a Bar Graph?

    Q: Why Are Points Connected in a Line Graph but Not in a Bar Graph?

    A: A line graph is a graph that charts the relationship between two variables or a progression of a single quantity through time. Without the lines connecting points of data, it would be difficult to make sense of the data being presented if there was no overall trend between the dots. A bar graph, on the other hand, is meant to compare two or more statistics, such as population figures.
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  • What Are the Advantages and Disadvantages of a Graph?

    Q: What Are the Advantages and Disadvantages of a Graph?

    A: The primary advantage of using a graph or chart in a presentation is that they help the audience to visualize the point of the presentation. Graphs emphasize the main point, make the data more convincing, provide a compact way of presenting information and help audiences stay engaged. Disadvantages of graphs include being time consuming to construct and costly to produce. They also require technology that some may lack.
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  • How Is Data Turned Into Information?

    Q: How Is Data Turned Into Information?

    A: According to the BBC, data is transformed into information after being imported into a database or spreadsheet. Information is defined as a collection of facts or data, whereas data is defined as information organized for analysis or used to reason.
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  • How Does a Graph Help People Interpret Scientific Data?

    Q: How Does a Graph Help People Interpret Scientific Data?

    A: Graphs of various types provide convenient visual representations of scientific data that would otherwise be presented in intimidating blocks of text or a series of numbers. Graphs represent statistics such as changes over time, comparisons, or parts of a whole. Graphs can be used to make date more accessible to both scientists and laypersons.
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  • What Are the Names of Graphs?

    Q: What Are the Names of Graphs?

    A: Several types of graphs are used for displaying information in mathematics including the bar graph; pie chart or circle graph; histogram; stem and leaf plot; dot plot; scatter plot; and time-series graphs. The type of graph chosen depends on whether the data is quantitative, qualitative or paired.
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  • What Is Numerical Data?

    Q: What Is Numerical Data?

    A: Numerical data is data that is expressed with digits as opposed to letters or words. For example, the weight of a desk or the height of a building is numerical data.
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  • What Is a Segmented Bar Graph?

    Q: What Is a Segmented Bar Graph?

    A: A segmented bar graph is similar to regular bar graph except the bars are made of different segments that are represented visually through colored sections. A segmented bar graph is sometimes known as a stacked bar graph, and it offers greater detail about data sets.
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  • Why Are Graphs Important?

    Q: Why Are Graphs Important?

    A: Graphs are beneficial because they summarize and display information in a manner that is easy for most people to comprehend. Graphs are used in many academic disciplines, including math, hard sciences and social sciences. They make appearances in corporate settings, serving as useful tools to convey financial information and facilitate data analysis.
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  • How Is a Tally Chart Made?

    Q: How Is a Tally Chart Made?

    A: To make a tally chart, single lines are drawn next to one another until reaching five, where the fifth line crosses the four other lines diagonally. This is a simple charting method that can be used quickly for surveys or other needs.
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  • What Is a Double Bubble Map?

    Q: What Is a Double Bubble Map?

    A: A double bubble map is a type of thinking map. According to Thinking Maps, double bubble maps are a tool to compare and contrast two different items or points.
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  • Q: What Are Some Example of a Pictograph Chart?

    A: Pictograph charts show data using graphical representations. Each image on a pictograph chart stands for a certain number of items. For example, a pictograph chart showing the sale of apples may use one apple to mean 100 bushels of apples sold. Pictographs are limited by what they represent based on how small a single representation breaks down to show portions of an image.
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  • Q: What Is an Ogive Graph?

    A: An ogive graph is a smooth S-shaped curve that is used in statistics. The graph is obtained by plotting the values of cumulative frequency against the upper boundary points of the class intervals.
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  • Q: What Does the Slope of the Budget Line Represent?

    A: The slope of the budget line represents the amount of good "y" the consumer must give up to purchase one more unit of a good "x." The budget line itself represents the number of good bundles a consumer can buy with limited income.
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  • Which Axis Does the Dependent Variable Go On?

    Q: Which Axis Does the Dependent Variable Go On?

    A: When graphing data, the dependent variable goes on the Y-axis while the independent variable goes on the X-axis. This allows consistent graph creation and easy data interpretation in the context of a scientific paper, poster or presentation.
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  • Who Invented Linear Equations?

    Q: Who Invented Linear Equations?

    A: Linear equations were invented in 1843 by Irish mathematician Sir William Rowan Hamilton. He was born in 1805 and died in 1865. Through his algebraic theory, Sir Hamilton made important contributions to mathematics, and his work found applications in quantum mechanics.
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  • Q: What Distinguishes a Histogram From a Bar Chart?

    A: Histograms and bar charts are different in several ways, but a major distinction is that the bars in histograms represent ranges of data, while the bars in bar charts represent categories. For example, a histogram might plot the percentage of visitors that went to a museum in 10-, 20- or 30-minute ranges. A bar chart might plot the number of visitors per category, such as the different museum exhibits.
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  • Where Is a Y Axis on a Bar Graph?

    Q: Where Is a Y Axis on a Bar Graph?

    A: The National Center for Education Statistics states that on a bar graph where the bars are placed vertically, the y-axis runs vertically from the bottom to the top of the graph. On bar graphs where the bars run horizontally, the y-axis is placed horizontally from left to right.
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  • Q: What Is the Difference Between Row and Column?

    A: Rows and columns are used to describe the arrangement of sets of data or objects in space, but the difference between these two terms lies is the orientation of the objects. A row has the objects arranged horizontally, and a column has the objects arranged vertically.
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  • Q: What Is a Typology Chart?

    A: A typology chart is a visual outline of the characteristics between different groups that share a common type. Typology charts typically present these characteristics in contrast to each other or in a sequential order of events, so that viewers can easily identify relationships between the groups.
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  • What Is a Horizontal Bar Graph?

    Q: What Is a Horizontal Bar Graph?

    A: A horizontal bar graph is a visual representation of data that include a series of horizontal bars representing numerical amounts. Variations in the lengths of the bars allows for quick comparisons.
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