An average that takes into account the proportional relevance of each component, rather than treating each component equally.

The mean of the form: where a1 and a2 are weighting factors and are the values to be average.

A number that is derived by multiplying the number of responses for each rating times the value of that rating, totaling those figures, and then dividing by the total number of respondents answering that question.

An average in which data from one or more years has a greater effect than other years. For example, a three-year average, weighted towards the most recent years, might be calculated as (2004/5 x 3 + 2003/4 x 2 + 2002/3 x 1) / 6.

A weighted average is more heavily influenced by some of the numbers it is calculated from than others.... more on: Weighted average

is one in which different data in the data set are given different "weights." Varying subjective assumptions are derived for determining the level of importance for each data category. For example, many teachers will use a "weighted average" when calculating a student's grade in a course. A teacher might determine the final grade for the course by calculating that the test average is 60% of the grade, quiz average is 30% of the grade, and a single project is 10% of the grade. WEIGHTED AVERAGE COST OF CAPITAL (WACC) is an average representing the expected return on all of a company's securities. Each source of capital, such as stocks, bonds, and other debt, is weighted in the calculation according to its prominence in the company's capital structure.

Different weights to each component of the average. Years of potential life lost (YPLL) A measure of the impact of premature mortality on a population, calculated as the sum of the differences between some predetermined minimum or desired life span and the age of death for individuals who died earlier than that predetermined age.

an adjusted average which gives greater consideration to the procedures that are performed more often

The calculated amount that reflects the percentage of students among the eligible schools in a school district.

A form of antidilution protection that adjusts the conversion price or the amount of securities into which a convertible security converts when a subsequent offering of securities (common stock or preferred stock) is made at a lower price. Unlike full ratchet antidilution provisions, the weighted average price protection is affected by the size or amount of the subsequent issuance to reflect the actual adverse impact incurred by the security holder. The conversion price is reduced by applying a complicated formula based on the shares outstanding prior to the new issue of securities and the current conversion price, and the amount of money received by the issuer divided by the number of fully diluted shares of common stock outstanding after the new issue.

A mathematical computation derived by dividing the total value of the sales during the period by the total number of units sold during the period.

is calculated by multiplying the grade points achieved in each course by the number of units in each course, totaling these results, and then dividing this result by the total number of course units. (See example under Grading System in the General Academic Regulations section in this Calendar.)

An average in which each component is adjusted by a factor that reflects its relative importance to the whole; obtained by multiplying each component by its assigned weight, adding the products, and dividing the sum of the products by the sum of the weights.

An average calculated by using two data items, 1) the percentage each item represents of the total amount and 2) the data item in which you are trying to get a weighted average.