how to analyze graphs
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- Graphs are often an excellent way to display your results. In fact, most good science fair projects have at least one graph. For any type of graph: Generally, you should place your independent variable on the x-axis of your graph and the dependent variable on the y-axis.
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- Open the Excel file that contains the data you need to graph. To make two lines using a line graph, you will need two columns of numerical data. If you want the data to have labels, you should include a header in the cell at the top of each column. Select the data that you want to include in the Line Graph.
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7 Graphs Commonly Used in Statistics Time-Series Graphs - A time-series graph displays data at different points in time, so it is another kind of graph to be used for certain kinds of paired data. The horizontal axis shows the time and the vertical axis is for the data values. These kinds of graphs can be used to show trends as time progresses.
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- Often, one of the first steps in analyzing data is to organize it in a table. A table is an orderly presentation of data aligned in columns and rows. In the table below the data are organized in 2 columns and 6 rows.
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How to determine the function value using a graph? To find f(2) by looking at a graph, go on the x axis to where x = 2. Then go either up or down to the point on your function, and determine that point's y value. That point's y value is f(2). Likewise, to find f(-2) by looking at a graph, go on the x axis to where x = -2.
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- Explore math with Desmos Start Graphing. Graph functions, plot tables of data, evaluate equations, explore transformations, and much more – for free! Are you a math teacher? Check out our classroom activities at teacher.desmos.com.
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- Key Info. 1  Review your data. 2  Calculate an average for the different trials of your experiment, if appropriate. 3  Make sure to clearly label all tables and graphs. 4  Place your independent variable on the x-axis of your graph and the dependent variable on the y-axis.
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- Patterns in data can be more easily discernible when displayed in graphs. A range of graphical techniques can be used to present data in a pictorial format. For example, column graphs, row graphs, dot graphs and line graphs. One way of summarising data is to produce a frequency distribution table or graph. A frequency table is a grouping of data into categories showing the number of observations in each category. These categories are referred to as classes.
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- 26 Other related Resources. 1  Analyze Data:This lesson uses statistical analysis to evaluate data. 2  Calculating the Mean, Median, Mode, and Range from a Frequency Chart: This lesson lasts a total of two hours: 15-minute pre-lesson, 90-minute lesson, and 15-minute follow up lesson or homework.
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- USING A GRAPHING CALCULATOR TO. GRAPH EQUATIONS CONTAINING y 2 EXAMPLE To use a graphing calculator to graph an equation containing y 2: 1. Solve the equation for y using the property that ya 2 = if and only if ya =± . 2. Use the Y= key to enter each of the solutions for y. 3. Determine an appropriate viewing window and graph the equation. 4.
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- Determine the value of the slope of a line from a table or a graph. Proportional Relationships. Determine whether a linear function is a direct variation. Solve problems involving direct variation. Compare proportional and non-proportional linear functions in the form of a table, graph and equation. Slope Intercept Form. Analyze a graph to determine slope and y-intercept. Graph a linear function using the slope and y-intercept. Write a linear equation in slope-intercept form given the slope and y-intercept. Standard Form. Analyze a linear graph to determine the intercepts. Write linear equations in standard form to model real world scenarios. Determine and interpret the intercepts of a linear function from an equation in standard form.
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- How to Draw a Graph. 1  1. Draw the x axis. Make a horizontal line on the paper. 2  2. Draw the y axis. Make a vertical line that passes through the origin of the x axis. 3  3. Calculate the values of y for several values of x. We will be drawing a graph using the function f(x) = 2x.  4. Mark the ordered pairs on the graph.
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- This will open Display Descriptive Statistics window, which shows all of your columns in a list on the left, and a Variables box on the right. 4. Double-click on the variable you want to analyze. The variable will appear in the Variables box on the right side of the window.
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- Axes. Graphs have two axes, the lines that run across the bottom and up the side. The line along the bottom is called the horizontal or x-axis, and the line up the side is called the vertical or y-axis. 1  The x-axis may contain categories or numbers. 2  You read it from the bottom left of the graph.raphs have two axes, the lines that run across the bottom and up the side. The line along the bottom is called the horizontal or x-axis, and the line up the side is called the vertical or y-axis. 1  The x-axis may contain categories or numbers.
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Brush up your maths: Graphs Suppose we want to plot a point on the graph. We will plot one for which the value of x is 1 and the value of y is 2. We find the value 1 along the x-axis. We draw a line vertically upwards. We find the value 2 along the y-axis.
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Definitions &Translations Typically, a graph is depicted in diagrammatic form as a set of dots for the vertices, joined by lines or curves for the edges. Graphs are one of the objects of study in discrete mathematics. The edges may be directed or undirected.
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Graphs and Charts Graphs have two axes, the lines that run across the bottom and up the side. The line along the bottom is called the horizontal or x-axis, and the line up the side is called the vertical or y-axis. 1  The x-axis may contain categories or numbers.2  You read it from the bottom left of the graph.raphs have two axes, the lines that run across the bottom and up the side. The line along the bottom is called the horizontal or x-axis, and the line up the side is called the vertical or y-axis. 1  The x-axis may contain categories or numbers.
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- Students will use problem solving to determine how to figure out their monthly gas cost. Define and select data to be used in solving the problem. Students will determine appropriate intervals on the x and y axes of the graph.
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Creating Bar Graphs One way to stimulate young minds is by creating and displaying information in chart and graph form. By creating simple bar or line graphs, children learn to ask questions and gather information about themselves and their surroundings. They also learn to sort and organize objects based on information.
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Algebra 2 Graphs can save you! They are a great way to see what is going on and can help you solve things. But you need to be careful as they may not always give you the full story.
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Computer Training : How to Make a Graph Using Excel Microsoft Excel can be used to make a graph by inserting data, creating tabs and making charts. Learn about the different charts and graphs that Excel can generate with help from a software developer in this free video on Microsoft Excel.1  Science & Technology. 2  Standard YouTube License.earn about the different charts and graphs that Excel can generate with help from a software developer in this free video on Microsoft Excel.
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- Sample Problem. Graph y = -2| x |. A function is all well and good, but to make the graph, we need specifics. Values. Something particular to sink our teeth into and leave a mark on the page. To that end, let's make a table of a couple values and see what pops out. Hopefully not a snake or a clown.
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- Area graphs are very similar to line graphs. They can be used to track changes over time for one or more groups. Area graphs are good to use when you are tracking the changes in two or more related groups that make up one whole category (for example public and private groups). . . . an X-Y Plot.
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- – You would create either two or three graphs. •For two in one: You might graph both age and gender. together for instance. •For two in one: You might put age and educational. status. •Or make a separate graph for age, gender and for. educational status as they relate to your survey question.
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- Analyze the shape of a graph to describe the distribution of data. Describe the shape of a dot plot. Describe the distribution of data using the mean absolute deviation. Express mean, median, and mode. Identify clusters, peaks and gaps in a dot plot.
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Brush up your maths: Graphs We often want to show data in the form of a graph. The horizontal axis is labeled x-axis, a name which we often use for it. The vertical axis is labeled y-axis. We often label the variables which are plotted on the x-axis and y-axis x and y.