Question

the weights of five grapefruits are 7.47 ounces, 7.23 ounces, 6.46 ounces, 7.48 ounces, and 6.81 ounces. using the clustering estimation technique, what is the approximate total weight of the grapefruits?
34 ounces
35 ounces
36 ounces
40 ounces

Explanation:

Step1: Cluster the numbers

The weights \(7.47\), \(7.23\), \(7.48\) are close to \(7\). The weights \(6.46\), \(6.81\) are close to \(6.5\).

Step2: Calculate the sum

There are 3 numbers close to \(7\) and 2 numbers close to \(6.5\). The sum is \(3\times7 + 2\times6.5=21 + 13 = 34\).

Answer:

34 ounces