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.ultiply each number by its weight. 1  You can choose to write this at the end of the chart or to do it on 1 line, in a formula. 2  For example, if you are trying to figure out the weighted average of certain grades, you might write 0.9(0.25) to indicate a 90 percent grade times 25 percent of the total grade.
Fish deservedly has a reputation as a top-notch brain food. Itâs an outstanding source of protein which is needed to form mood-boosting neurotransmitters like serotonin and dopamine. Itâs also a great source of vitamin B12, an essential vitamin for a healthy brain and nervous system.
Lets look at what its made of. Food (which really includes many types of drinks too  like milk shakes and cola  but not water) is made up of nutrients. These are the things which give you energy or help build up your body as you grow. Maybe you already know what the most important Big Three nutrients are: