linear regression equation prediction calculator

LINEAR REGRESSION EQUATION PREDICTION CALCULATOR MANUAL
LINEAR REGRESSION EQUATION PREDICTION CALCULATOR PLUS

up/ down : move the cursor from the data points of one set to another data set.

left/ right : move the cursor from point to point.

You can move the cursor using the four directional arrows: Navigating through the data points of a scatterplot

left / up / right / down: move the window.

Select Navigate to work with the interactive display window: When your axes are not equal, a symbol will appear beside the Axes menu. Selecting this option will lengthen the shortest axis to match the longest. To do this, highlight Make axes equal and confirm with the ok key. You may make your axes equal inside the Axes menu.

Highlight Confirm at the bottom of the screen.

To allow the calculator to choose automatically, select Auto at the top of the screen.

Enter your desired Minimum and Maximum values.

LINEAR REGRESSION EQUATION PREDICTION CALCULATOR MANUAL

The Axes menu allows you to make manual changes to the axes of your graphing window. You may also highlight Auto and press the ok key to disabled the Auto mode. Once you exit this window, either with the directional keys or by changing the settings, Auto will be disabled and the yellow circle will disappear. When Auto is active, a yellow circle will appear to the right of its name. Once you enter your data, the resulting axes will be chosen automatically. The NumWorks graphing calculator will adapt to display the best possible view of your regression.

LINEAR REGRESSION EQUATION PREDICTION CALCULATOR PLUS

You may press plus and minus to zoom in/out while in the Graph tab. The menus are located underneath the tabs near the top of the screen. There are three menus that allow you to adjust your graphing window: Auto, Axes and Navigate. This includes: editing your X and Y values, zooming in and out, and more. You may adjust the display window in the Graph tab to fit your needs. Using the Graph tab Adjusting the display window To change the regression model you are using: You may change the regression model you’ll use directly in the Data tab. The items of your list have been sorted.Ĭhanging the regression model in the Data tab Highlight the name of the column you would like to sort.You may sort a list in a data table by increasing values. You can re-evaluate or edit the formula by returning to the Fill with formula option. For example, if you would like column Y1 to be filled with the values of X1 divided by 2, write X1/2 in the editing field at the bottom of the screen. You can also enter a formula using the name of another column.Select a list function from the templates or use the Empty template to create your own.

Highlight the name of the column you wish to fill.

You may fill a column of a data table using a formula.

You can also clear a column by pressing the del key when a column name is highlighted. For example, highlight X1 to clear the first column of the first data table.

Highlight the name of the column you want to clear.

To clear an entire column from a data table: You may clear an entire column from any data table. To change a value, highlight the desired cell and enter a new value with the numerical keys.

Highlight the cell that you wish to clear.

Using the Data tab Clearing an element from a data table You will see the table of statistical values.

Highlight the Stats tab at the top of the screen.

Once you have entered your data into the table in the Data tab, you may view the statistical values: mean, standard deviation, median, etc. When the model is select, the bottom banner will include the predicted value and the equation. You can now use the down/ up keys to move from a data point to the regression model.

Highlight the model you would like to use.

While on the Graph tab, press the ok key to view a list of regression model options.

Once you have created a scatterplot, you may plot a regression model.

The coordinates of the selected point will be displayed in the bottom banner along with the correlation coefficent, r. You will see the points that represent your data. Highlight the Graph tab at the top of the screen.Once you have entered your data into the table, you may view a scatterplot of your data. In the second column (Y1), enter the values of the second variable of your data set.In the first column (X1), enter the values of the first variable of your data set.When you enter the Regression app, you must enter your data into a two-column table. Getting started Entering your data into the table This application allows you to perform statistical computations on two-dimensional data sets. Press the ok key to enter the application. To enter the Regression application, highlight the app using the directional keys.

Linear regression equation prediction calculator