The standard deviation is a measure that indicates the extent to which the peaks and troughs of a wave differ on average from the mean voltage. A large standard deviation is a measure of large amplitude waves, i.e., on average the peaks and troughs differ by a large extent from the mean voltage.
The weighted average formula is used to calculate the average value of a particular set of numbers with different levels of relevance. The relevance of each number is called its weight. The weights should be represented as a percentage of the total relevancy. Therefore, all weights should be equal to 100%, or 1.
Overview. A Weighted Moving Average is an average of data calculated over a period of time, where greater weight is attached to the most recent data. The Weighted Moving Average can be used with any price including the Hi, Low, Open, or Close price, and can be applied to other indicators as well.alculation: The Weighted moving average is calculated using a sum of indexes of time periods (data points). Weight for every period is calculated as index / (Number of data points). The following table demonstrates how to calculate a 5 days weighted moving average: