Tales by Dots and LinesClass 8 Mathematics Flashcards

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Question

What is the formula for the arithmetic mean of a data set with nn values?

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Answer

The mean is the sum of all values divided by the number of values. For a data set with values x1,x2,…,xnx_1, x_2, \dots, x_n: Mean=x1+x2+⋯+xnn\text{Mean} = \frac{x_1 + x_2 + \dots + x_n}{n} It represents the 'centre' of the data.

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