Data 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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 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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  • 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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  • What Is a Pie Graph Used For?

    Q: What Is a Pie Graph Used For?

    A: A pie graph is an effective visual tool used for showing how something breaks into parts. A pie graph is essentially a circle sliced into 100 pieces. Each category or part represented in the pie graph is given a piece of the pie to represent the percentage that it comprises of the whole.
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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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  • 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 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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  • What Is Geodetic Surveying?

    Q: What Is Geodetic Surveying?

    A: Geodetic surveying is a specific type of surveying that takes the curvature of the Earth into account. These surveys cover large areas of land and provide high levels of accuracy.
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  • Q: What Is a Scattergram Used For?

    A: A scattergram or scatter plot defines a relationship between two variables related to cause and effect. According to the American Society of Quality, a scattergram illustrates pairs of numerical data on graphs with one variable on each axis to explore the relationship between them.
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  • Q: What Is the Bar Model?

    A: The bar model is a visual representation of a number using unit cubes, as stated on SplashMath.com. One cube is equal to one. One line is equal to 10 cubes. One sheet is equal to 100 cubes or 10 lines.
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  • Q: How Do You Analyze Data?

    A: Data analysis is conducted by gathering, processing, inspecting, cleaning, transforming and modeling data. There are a variety of tools that are important for modeling data, including both graphical and quantitative techniques. All data analysis requires a strong understanding of mathematical statistics.
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  • Q: What Is a "coordinate Plane"?

    A: According to the Math Planet, a coordinate plane is a two-dimensional number line that is composed of a horizontal line called the x-axis and a vertical line called the y-axis. These two lines are perpendicular with each other and intersect at a point called the origin.
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  • What Is a Scatter Plot Generator?

    Q: What Is a Scatter Plot Generator?

    A: A scatter plot generator is a visual representation of a set of values. After a person inputs x and y coordinate values, the scatter plot generator maps each point on a graph.
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  • Q: What Are Rules for Building Basic Genograms?

    A: Basic standard genograms, also called family diagrams, use squares to signify males, circles for females, horizontal lines to represent family relationships within a generation and vertical lines to represent parent-child connections. In relationships, males are placed on the left, females are placed on the right and children are ordered by age, with the oldest to the left.
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  • What Is the Intersection of Each Column and Row Called?

    Q: What Is the Intersection of Each Column and Row Called?

    A: The intersection of a vertical column and horizontal row is called a cell. The location, or address, of a specific cell is identified by using the headers of the column and row involved. For example, cell "F2" is located at the spot where column "F" and row "2" meet.
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  • Q: What Is a Datum Line?

    A: A datum line is a point of reference or standard for comparison. The term is primarily used in reference to surveying and engineering, where it is used in the measurement of depths and heights.
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