Mathematics · Probability
एक थैले में 8 लाल और 5 नीली गेंदें हैं। यदि दो गेंदें यादृच्छिक रूप से निकाली जाती हैं, तो एक गेंद लाल और दूसरी नीली होने की प्रायिकता ज्ञात कीजिए।
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