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.
Answers.comÂ® is making the world better one answer at a time. Foods that promote (but not contain) a variety of feel good brain chemicals (serotonin, dopamine, norepinephrine, oxytocin) include: Protein rich foods: eggs. chicken, beans, apples, bananas, beets, watermelon and Wheat germ.