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[DOCX File]Algebra 1
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The output of the LinReg(ax+b) command is shown in Figure 6. a ≈ 7.03 is the slope of the regression line and b ≈ –332.45 is the y-intercept of the regression line.Using these values, the equation of the regression line is y=7.03x-332.45 .To graph the regression line, type the equation into the Y= menu as shown in figure 7.
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[DOC File]PreCalculus Chapter 1 Functions and Their Graphs
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a graph and from an . equation. Interpret the slope and y- intercept of a line. Graph a line. Write an equation of a . line given two points. Write an equation of a line . through a point and (( or ( to a given line. 1.7 Regression. Draw a scatter plot. by hand and on a . calculator. Interpret r (correlation). Use scatter plots to. find linear ...
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[DOC File]Worksheet on Correlation and Regression
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Worksheet for Correlation and Regression (February 1, 2013) Part 1. Consider the following hypothetical data set. Here are data from four students on their Quiz 1 scores and their Quiz 5 scores and a graph where we connected the points by a line. () (Fake) Data on Quiz scores: x. y. Quiz 1. Quiz 3. 0 5 3 6.5 6 8 8 9 Identify each of these ...
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[DOC File]Applying Problem Solving and Graphing Calculator ...
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A 6B interpret the meaning of slope and intercepts in situations using data, symbolic representations, or graphs. A 6C investigate, describe, and predict the effects of changes in m and b on the graph of y = mx + b. A 6D graph and write equations of lines given characteristics such as two points, a point and a slope, or a slope and y intercept.
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[DOC File]Graphing a Scatter Plot
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When a calculator or computer computes a regression line, it also gives the correlation coefficient. This is a number that is always between -1 and 1. It measures the degree to which the data is linear and whether the data is increasing or decreasing. The closer to 1 or -1 the correlation …
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[DOCX File]Correlation Coefficient Worksheet
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Correlation Coefficient WorksheetName: Calculator steps for creating a scatter plot: Stat. Edit – put x’s in L1 and y’s in L1. 2nd y = Choose first type of graph. Calculator steps for finding “r” and graphing: Stat. Calc #4 (LinReg) Vars. Y-vars. Y1. Enter. Enter. Once you have written the r value written down, press zoom 9 to graph ...
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Correlation graph calculator