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MLS-C01 Modeling Practice Question

Exhibit

Refer to the exhibit.

```
{
  "predicted_label": "spam",
  "predicted_probability": 0.95,
  "label": "ham"
}
```

Refer to the exhibit. A data scientist is evaluating a binary classification model for spam detection. The exhibit shows a single prediction instance. What is the model's prediction for this instance?

⚠ Common exam trap

The MLS-C01 exam often tests the distinction between a model's probability output and its final class prediction, leading candidates to mistakenly select the probability value (0.95) as the prediction instead of the class label (Spam).

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

Spam

The model's prediction is 'Spam' because the prediction instance shows a probability of 0.95 for the 'Spam' class, which exceeds the typical decision threshold of 0.5 used in binary classification. Since the probability for 'Spam' is higher than for 'Ham' (0.05), the model assigns the instance to the class with the highest probability, which is Spam.

Answer analysis

Option-by-option breakdown

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

  • Ham

    Why it's wrong here

    'Ham' is the actual label, not the prediction.

  • 0.95

    Why it's wrong here

    0.95 is the probability, not the predicted label.

  • The model is unsure because probability is not 1.0

    Why it's wrong here

    The model still outputs a predicted label.

  • Spam

    Why this is correct

    The 'predicted_label' is 'spam'.

About these practice questions

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This MLS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the MLS-C01 exam.