You have collected data about a set of patients, all of whom suffered from the same illness. During their course of treatment, each patient responded to one of five medications. The column. Drug, is…

Question

Options

• AWeb node
• BDistribution node
• CSim Fit node
• DEvaluation node

• C
  92% (11)
• D
  8% (1)

Explanation

There appears to be an error in this question's answer key. Based on IBM SPSS Modeler (which this question references), B (Distribution node) is the correct answer, not C.

Why B is correct: The Distribution node is specifically designed for categorical (symbolic/character) fields. It outputs counts and percentages for each category value - exactly what you need to see what proportion of patients responded to each drug.

Why the distractors are wrong:

• A. Web node - displays relationships/associations between two or more categorical fields; not for single-field proportions.
• C. Sim Fit node - fits statistical probability distributions to numeric data for simulation purposes; inappropriate for a categorical "Drug" field.
• D. Evaluation node - assesses and compares predictive model performance; it's a model evaluation tool, not an exploratory data tool.

Memory tip: Think "Distribution node = distribution of categories." When your field is a label/string (like drug names), and you want to see how values are distributed (i.e., what percent falls into each group), reach for the Distribution node. If the field were numeric and you were running simulations, then Sim Fit would apply.

Note for exam takers: If your exam lists C as correct, flag this question - the answer key may contain an error. The Distribution node is the standard SPSS Modeler tool for this use case.

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