Arithmetic mean of a series of items is obtained by adding together all the items and dividing by the number of items. Arithmetic mean can be calculated by 1. Direct Method , 2 Short-cut Method, 3 Step- deviation method .
Arithmetic mean of a series of items is obtained by adding together all the items and dividing by the number of items. Arithmetic mean can be calculated by 1. Direct Method , 2 Short-cut Method, 3 Step- deviation method .
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