A weighted average is a more accurate measurement of scores or investments that are of relative importance to each other. This is often the case with investment portfolios, grade scoring and other statistics. You can find out how to calculate weighted averages. 1. Sit down with your data, a piece of paper and a pencil.
To specify the boot sequence: 1  Start the computer and press ESC, F1, F2, F8 or F10 during the initial startup screen. 2  Choose to enter BIOS setup. 3  Use the arrow keys to select the BOOT tab.  To give a CD or DVD drive boot sequence priority over the hard drive, move it to the first position in the list.
2. Reboot your computer. Before you can boot from a CD or DVD, you need to make sure that the CD/DVD drive is set as the primary boot device. 1  When you see the manufacturerâs logo, hit the key displayed to enter the BIOS setup menu. 2  The key varies by manufacturer. 3  The most common keys are F2, F10, F12, and Del.