Question

write the answer one word
.Write down the formula of calculating arithmetic mean.​

Answer 1

Step-by-step explanation:

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Answer 2

Arithmetic Mean Formula

If any data set consisting of the values b1, b2, b3, …., bn then the arithmetic mean B is defined as:

B = (Sum of all observations)/ (Total number of observation)

= 1/n ∑ni=1bi=b1+b2+b3+….+bnn

If these n observations have corresponding frequencies, the arithmetic mean is computed using the formula

x = x1f1+x2f2+……+xnfnN and

using Sigma notation = ∑ni=1xifiN

where N = f1+ f2 + ……….+ fn.

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