Para Jumble practice question for SSC. Review the correct answer and explanation, then continue with related practice below.
Arrange the following sentences in the correct order. A. The apparent success of the strategy may therefore depend on conditions that existed only in the past. B. An investment strategy is designed after examining which rules would have performed best on historical data. C. Repeatedly testing alternatives makes it easier to discover a rule that fits past noise unusually well. D. Reliable evaluation requires testing the selected strategy on genuinely new data.
Correct Answerसही उत्तर
A. BCAD
Explanationव्याख्या
(English): B introduces strategy selection from historical data.
C explains overfitting through repeated testing.
A states why historical success may not generalise.
D gives the correct validation approach.
Overall Meaning: A strategy that fits historical data very well may fail when tested in the future.
व्याख्या (Hindi): B historical data देखकर investment strategy select करने की बात करता है।
C repeated testing के कारण past noise fit होने की समस्या बताता है।
A past-specific success की possibility बताता है।
D new unseen data पर testing का निष्कर्ष देता है।
समग्र अर्थ: Historical data पर बहुत अच्छा perform करने वाली strategy future में fail कर सकती है यदि वह past noise पर overfit हो गई हो।
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