Question

Write the formula of computing weighted arithmetic mean.

Answer 1

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The weighted arithmetic mean is computed by using the following formula: ¯Xw=∑wx∑w. Here: ¯Xw stands for weighted arithmetic mean. x stands for values of the items .

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Answer 2

Answer:

For the calculation of arithmetic mean, the importance of all the items is taken to be equal. However, there may be situations in which all the items under consideration do not have equal importance.

Arithmetic mean computed by considering relative importance of each item is called weighted arithmetic mean.

where,

= weighted arithmetic mean

wi = weight of the item

xi = value of the item