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Construct a testing data set of 200 instances

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Given a data set of 1000 instances, we want to pick a training data subset of 800 instances and a testing subset of 200 instances to train/test a Machine Learning model. After applying hierarchical clustering on the whole data set, we found a clustering of 3 clusters. Cluster 1 contained 700 instances, cluster 2 contained 250 instances and cluster 3 contained 50 instances. How many instances should we pick from each of the 3 clusters, to construct a testing data set of 200 instances?

Reference no: EM133270125

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