硬幣的兩個麵,一麵是奇數,一麵是偶數。現在把這枚硬幣扔4次, 然後把每次得到的數值相加。請問,最後的和是奇數,偶數的概率是各是多少?
硬幣的兩個麵,一麵是奇數,一麵是偶數。現在把這枚硬幣扔4次, 然後把每次得到的數值相加。請問,最後的和是奇數,偶數的概率是各是多少?
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