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MLS-C01 Exploratory Data Analysis Practice Question

A company uses Amazon SageMaker Data Wrangler to perform exploratory data analysis. They want to detect outliers in a numerical column using the Interquartile Range (IQR) method. Which transformation should they apply in Data Wrangler?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

Handle outliers

Amazon SageMaker Data Wrangler provides a 'Handle outliers' transform that supports IQR-based outlier detection. Option A (Impute) is used to fill missing values, not detect outliers. Option B (Normalize) scales data to a standard range. Option D (Binning) groups continuous values into intervals. Therefore, the correct transform to apply for IQR outlier detection is 'Handle outliers'.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • Impute

    Why it's wrong here

    Imputation handles missing values.

  • Normalize

    Why it's wrong here

    Normalization rescales, does not detect outliers.

  • Handle outliers

    Why this is correct

    This transform supports IQR method.

  • Binning

    Why it's wrong here

    Binning discretizes, not for outlier detection.

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