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Para Jumble practice question for SSC. Review the correct answer and explanation, then continue with related practice below.

Question language / प्रश्न भाषाहिंदी अनुवाद इस पुराने प्रश्न के लिए उपलब्ध नहीं है।

Arrange the following sentences in the correct order. A. The model may then appear accurate because it is being tested on information it effectively already used. B. Analysts sometimes choose variables after examining the full dataset. C. If the same data are later used to test the model, the evaluation is no longer fully independent. D. Reliable validation therefore requires genuinely unseen data or a properly separated test sample.

Answer and explanation are free to read — no sign-in required.उत्तर और व्याख्या पढ़ने के लिए साइन-इन आवश्यक नहीं है।

A

BCAD

✓

B

BACD

C

CBAD

D

BADC

Correct Answerसही उत्तर

A. BCAD

Explanationव्याख्या

(English): B introduces data-driven variable selection.
C explains why testing on the same dataset is not independent.
A states the resulting false appearance of accuracy.
D gives the validation requirement.
Overall Meaning: A model should be evaluated on data that did not influence its construction.

व्याख्या (Hindi): B full dataset देखकर variables चुनने की बात करता है।
C उसी data से model test करने की independence problem बताता है।
A artificially high accuracy की संभावना बताता है।
D unseen test data की आवश्यकता का निष्कर्ष देता है।
समग्र अर्थ: Model का सही evaluation ऐसे data पर होना चाहिए जिसका उपयोग model बनाने में नहीं हुआ हो।

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