Q. 124.2( 5 Votes )

The table given below gives the distribution of villages and their heights from the sea level in a certain region.

Compute the mean height, using the step-deviation method.

Answer :

Let the assumed Mean be A = 1400

= h = x2 – x1 = 600 – 200 = 400

Thus, we prepare the table as below:

We know that,

Mean =


Hence, The Mean height is 984.51.

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