दो सिक्कों को एक साथ उछाला गया है। दोनों पर शीर्ष आने की क्या प्रायिकता है? Two coins are tossed simultaneously. The probability of getting exactly two heads is

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दो सिक्कों को एक साथ उछाला गया है। दोनों पर शीर्ष आने की क्या प्रायिकता है? Two coins are tossed simultaneously. The probability of getting exactly two heads is