Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) General Knowledge Economy

प्रतिपगमन रेखाएँ कब सम्पाती हो जाती हैं ?

1
जब सहसम्बन्ध गुणांक 0.5 हो ।
2
जब सहसम्बन्ध गुणांक +1 या - 1 हो।
3
जब सहसम्बन्ध गुणांक -0.5 हो ।
4
जब सहसम्बन्ध गुणांक 0 हो ।
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