Weighted mean is a statistical tool to measure the mean of a population which carry some importance than the other observations. This measurement is like that of the arithmetic mean, but the concept is slightly different. Some value has more important in an observation, to find out this value we are using this calculator. Weighted mean is denoted by \bar{x}. The mathematical expression for weighted mean is,

$\bar{x}$=$\frac{\sum_{i=1}^{n}w_{i}x_{i}}{\sum_{i=1}^{n}w_{i}}$
Where $x_{i}$ is the observations
           $w_{i}$ is the weight to the x value
           n is the total number of observations
Steps involving for the calculation of weighted mean is given below:

Step1: Write down the observations and weights from the given question.

Step2: By using the given formula, calculate the weighted mean.

$\bar{x}$=$\frac{\sum_{i=1}^{n}w_{i}x_{i}}{\sum_{i=1}^{n}w_{i}}$