gmicah187
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Use the clustering estimation technique to find the approximate total in the following question. What is the estimated sum of 105, 101, 139, and 78?

Respuesta :

105, 101, 139, and 78 all cluster around 100
so estimated sum = 4 * 100
= 400

cluster estimation is to estimate sums when the numbers being added cluster near in value to a single number. it is 100 in this case.

estimate sum = 100x4 = 400


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