(8) अलग objects को sizes (3), (3), और (2) के unlabelled groups में बांटते समय अतिरिक्त division किससे होगा?
When (8) distinct objects are divided into unlabelled groups of sizes (3), (3), and (2), by what extra factor do we divide?
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Correct Answer
A. (2!)
Concept
Two groups have equal size (3), so interchanging those groups gives the same distribution. In exams divide extra by factorial of equal-sized unlabelled groups.
Why this answer is correct
The correct answer is A. (2!). Two groups have equal size (3), so interchanging those groups gives the same distribution. In exams divide extra by factorial of equal-sized unlabelled groups.
Exam Tip
दो groups का size (3) समान है इसलिए उन groups की अदला-बदली same distribution देती है। परीक्षा में equal-sized unlabelled groups के factorial से extra divide करें।
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