【實用教育app】Weighted average calculator|最夯免費app-綠色工廠好玩App

App useful for students to quickly calculate a traditional or a weighted grade point average. Have the option to count mark 2 as 0 (useful for some schools).

For traditional (arithmetic) average leave the "weight" field empty or enter 1.

The weighted mean is similar to an arithmetic mean (the most common type of average), where instead of each of the data points contributing equally to the final average, some data points contribute more than others. The notion of weighted mean plays a role in descriptive statistics and also occurs in a more general form in several other areas of mathematics.

If all the weights are equal, then the weighted mean is the same as the arithmetic mean. While weighted means generally behave in a similar fashion to arithmetic means, they do have a few counterintuitive properties, as captured for instance in Simpson's paradox.