Data Graphs

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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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  • 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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  • 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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  • 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 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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  • 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 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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  • 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 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 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 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 the Direct Variation Formula?

    Q: What Is the Direct Variation Formula?

    A: The general formula for direct variation is k equals y divided by x. In this formula, k is a constant quantity and x and y are variables. K is also called the constant of variation, because it stays the same even as x and y vary.
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  • Q: How Do You Graph a Function?

    A: To graph a function, create a table containing several ordered pairs, and plot the points on a graph. Depending on the type of function, the number of ordered pairs needed can vary. Use your own discretion when determining how many points are enough.
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  • How Do You Calculate Depreciation in Math?

    Q: How Do You Calculate Depreciation in Math?

    A: Calculating depreciation depends on the item you are depreciating, and whether you want to calculate by time or by use. Three methods of calculating depreciation exist: the declining balance method, the straight line method and the sum of the year's digits method. In the declining balance method, depreciation equals the book value multiplied by the depreciation rate. The book value is equal to the cost minus the accumulated depreciation.
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  • Q: What Is an Example of an Array?

    A: An example of an array in PHP is array(1 => "a", 2 => "b", 3 => "c"). Other programming languages, such as C++, have different structures.
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  • Q: What Is a Continuous Graph?

    A: A continuous graph is a graph that describes a space containing smoothly connected numerical values. There are no values excluded in between individual points on this graph. Continuous graphs are sometimes conflated with continuous functions, which are smoothly connected plot lines or shapes.
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  • Q: Are Electric Field Lines Equipotential or Perpendicular?

    A: Electric field lines are not equipotential because the equipotential lines are perpendicular to the electric field lines. The equipotential lines are lines that denote everywhere that has the same electric potential, or is subject to the same electric field.
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  • Q: How Is a Scatter Plot Created?

    A: A scatter plot is created by mapping the quantitative data values of a dependent variable with respect to the quantitative data values of an independent variable. The data points are plotted on a graph, known as the Cartesian (x,y) coordinate plane, where the horizontal line represents the x-axis and the vertical line represents the y-axis.
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  • How Can You Compare and Contrast Hurricanes and Tornadoes Using a Venn Diagram?

    Q: How Can You Compare and Contrast Hurricanes and Tornadoes Using a Venn Diagram?

    A: When drawing a Venn diagram to compare and contrast hurricanes and tornadoes, all their properties should be listed. Their similarities should be listed where the circles overlap, and their differences should be listed where the circles do not overlap.
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  • Q: How Do You Plot a Beer's Law Graph?

    A: To plot a Beer's Law graph, calculate the absorbance and concentration of the radiation being measured. Mark these on the graph, and draw a line corresponding to the standard plot points.
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  • Q: What Is a Frequency Polygon Used For?

    A: The purpose of a frequency polygon is to communicate the shape of distributions. The purpose is similar to that of a histogram but is preferable when it comes to providing data comparisons. Those needing to display cumulative frequency distributions also find frequency polygrams to be more helpful.
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