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.
1 Curry, celery, broccoli, cauliflower and walnuts contain antioxidants and other compounds that protect your brain health and may even stimulate the production of new brain cells. 2  Healthy fats, blueberries, red meat, crab and garbanzo beans are also wonderful foods for brain health.n addition to celery, peppers and carrots are also good sources of luteolin. 3. Broccoli and Cauliflower Broccoli and cauliflower are good sources of choline, a B vitamin known for its role in brain development.