Sharp EL-9600 manual Chapter seven

Page 36

Chapter seven

GRAPHICAL PORTRAYAL OF A TWO-VARIABLE DATA SET

Introducing the Topic

In this chapter, you and your students will learn how to use the Sharp graphing calculator to graphically portray a two-variable data set with a statistical graph called a scatter diagram or scatter plot.

Calculator Operations

Before drawing a scatter diagram, data must be entered on the statistics data entry screen. You can either enter new data or recall a data set that has been stored within a matrix. (Refer to Chapter 5 for discussion on entering, storing and/or recalling a two-variable data set.) Consider the following table listing the revenue for a large corporation:

Year	Revenue (in millions of dollars)
1990	48.63
1991	48.86
1992	48.91
1993	49.69
1994	51.10
1995	52.00
1996	52.03

32Graphical Portrayal of a Two-Variable Data Set/STATISTICS USING THE SHARP EL-9600

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Contents Sharp E L 9 6 0 Statistics Ii Statistics Using the Sharp EL-9600 Contents Creation of a Page Stat EnterList Method of Teaching For Discussion Chapter two 1Stats Method of Teaching Using Blackline Master Additional Problems Chapter three Enter Page Save this data set by pressing 2ndF For Discussion Chapter four Enter DEL Trace QuitStat Plot Enter Enter 2ndF Chapter five Touch a Edit List , touch To enter the statistics menu For Discussion Chapter six Page Page 2Stats. Press Page Find the numerical descriptions of the following data sets Chapter seven DEL Enter Source U.S. Environmental Protection Agency For Discussion MathAdditional Problems Page Linear Regressions Linear Regressions/STATISTICS Using the Sharp EL-9600 Linear Regressions/STATISTICS Using the Sharp EL-9600 Method of Teaching Scattr Additional Problems Other Regressions Touch D REG, touch On the screen, double touch 10 Rgaebx, Method of Teaching Using Blackline Master Additional Problem Statistical Tests Statistical Tests/STATISTICS Using the Sharp EL-9600 Method of Teaching Using Blackline Master Statistical Tests/STATISTICS Using the Sharp EL-9600 For Discussion Contents Reproducible Blackline Masters Steps for creating a non-weighted one-variable data set Creation of a ONE-VARIABLE Data SETSteps for creating a weighted one-variable data set Double touch 1 StoLD, pressActivity 1 Creating a non-weighted one-variable data set Activity 2 Creating a weighted one-variable data setONE-VARIABLE Data SET Numerical Description of a ONE-VARIABLE Data SET Numerical Description of a ONE-VARIABLE Data SET Numerical Description of a ONE-VARIABLE Data SET Steps for creating a non-weighted data sets histogram To view the histogram, press GraphSteps for creating a weighted data sets histogram Activity 1 Creating a non-weighted data sets histogram Activity 2 Creating a weighted data sets histogramOther Graphical Portrayals of a Stat Plot ONE-VARIABLE Data SET Steps for creating a non-weighted two-variable data set Creation of a TWO-VARIABLE Data SETSteps for creating a weighted two-variable data set Activity 1 Creating a non-weighted two-variable data set Activity 2 Creating a weighted two-variable data setNumerical Description TWO-VARIABLE Data SET Quit Stat Numerical Description TWO-VARIABLE Data SET Graphical Portrayal TWO-VARIABLE Data SET ZoomDrawing a scatter diagram of a two-variable data set Graphic Portryal of a TWO-VARIABLE Data SETGraphical Portrayal TWO-VARIABLE Data SET Access the data entry screen and delete the old data set Graphic Portrayal TWO-VARIABLE Data SETLinear Regressions Steps for calculating the best-fitting lineGraph Access the data entry screen and delete old data Calculating the best-fitting lineActivity 1 Calculate and plot the regression line Activity 2 Calculate and plot the regression lineOther Regressions Steps for calculating other regression modelsOther Regressions Model of Best FIT Model of best fitActivity 2 Calculate the power regression model Activity 4 Which regression model fits the best? Statistical Tests EXE 10.3 Keypad for Sharp EL-9600 Graphing CalculatorSolutions to Selected Activities Answer Key/STATISTICS Using the Sharp EL-9600 Teaching Notes

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