Mathematics · Probability Distribution
एक असतत यादृच्छिक चर (discrete random variable) X का प्रायिकता वितरण नीचे दिया गया है: X123456P(X=xi)αααββ0.3 यदि μ और σ2 क्रमशः X के माध्य और प्रसरण को दर्शाते हैं, और μ = 4.2 है, तो σ2 + μ2 का मान क्या है?
- 121.4
- 216.4
- 310.8
- 420.4✓
सही उत्तर देखें
20.4
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