Mathematics · Probability Distribution
एक सतत यादृच्छिक चर (continuous random variable) x के लिए, प्रायिकता घनत्व फलन (probability density function) इस प्रकार दिया गया है: f(x) = c x2 जब |x| ≤ 1, और 0 जब |x| > 1. प्रसरण, var(x) का मान ज्ञात कीजिए।
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