Mathematics · Probability and Statistics
एक खिलाड़ी 2 निष्पक्ष सिक्के उछालता है। यदि 2 चित (Heads) आते हैं तो वह ₹5 जीतता है, यदि एक चित आता है तो ₹2 जीतता है और यदि कोई चित नहीं आता है तो ₹1 जीतता है। तो उसकी जीत की राशि का प्रसरण (variance, ₹ में) है:
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