Regression from Summary Statistics. If you already know the summary statistics, you can calculate the equation of the regression line. The slope is b1 = r (st dev y)/(st dev x), or b1 = . 874 x 3.46 / 3.74 = 0.809. How do you calculate b1? The slope of the regression line is b1 […]

Select the scatter chart, and then click the Add Chart Element > Trendline > More Trendline Options on the Design tab. 3. In the opening Format Trendline pane, check the Polynomial option, and adjust the order number in the Trendline Options section, and then check the Display Equation on Chart option. How do you add […]

Add a linear regression line to the scatter chart by clicking the “Layout” tab, selecting the “Trendline” drop-down box and clicking “Trendline Options.” Select the “Linear” option and click the “Display Equation on Chart” box. Excel displays the linear equation on the chart in the y=mx+b format. How do you create a linear equation in […]

Using the “slope-intercept” form of the line’s equation (y = mx + b), you solve for b (which is the y-intercept you’re looking for). Substitute the known slope for m, and substitute the known point’s coordinates for x and y, respectively, in the slope-intercept equation. What is the Y value in an equation? The variable […]

How do I set up an Exchange email account? Create user mailboxes In the EAC, go to Recipients > Mailboxes. Click New ( ) On the New user mailbox page, configure the following settings. You can click Save to create the mailbox and the associated Active Directory user account, or you can click More options […]

Open up a Word document and write your name and contact info at the top left, and the number of lines at the top right of the page. Place the title in the center of the page, then place the text of the poem beneath it. Justify and indent the text of your poem. Do […]

555 was introduced as a way to curb prank callers dialling numbers seen in movies way back in the 1950s, those specific digits chosen because the combination of J, K and L, the letters assigned to the number 5 on a phone, are not associated with any major American states. What happens if you dial […]

On July 26, 1775, the U.S. postal system is established by the Second Continental Congress, with Benjamin Franklin as its first postmaster general. Franklin (1706-1790) put in place the foundation for many aspects of today’s mail system. How did mail work 1700s? However, in the mid-1700s, a letter might take as long as fourteen days […]

Android Open the Settings app on the Android device. Scroll the list and tap Apps, Applications or Manage apps. (optional) On certain devices like Samsung, tap Application Manager. Scroll the list to find the app to force quit. Tap FORCE STOP. Is it OK to force stop an app? No, it’s not a good or […]

PowerPoint presentation (Microsoft) PPT is a file extension for a presentation file format used by Microsoft PowerPoint, the popular presentation software commonly used for office and educational slide shows. All text images, sound and video used in the presentation are contained in the PPT file. What is the extension of a PowerPoint file? pptxFile formats […]