投硬币的概率问题A coin is tossed 10 times.What is the probability that the third head will appear on the tenth toss? 答案 第3次头朝上概率是1/2,因为他们是独立事件 结果二 题目 投硬币的概率问题 A coin is tossed 10 times.What is the probability that the third head will appear on the te...
A coin is tossed five times. What is the probability that the result has at least one heads? 答案 3132 .The probability that the result is 5 tails in a row would be 12×12×12×12×12=132 . Thus, the probability that the result is at least one head would be 1−132=3132 . 相...
3132 . The probability that the result is 5 tails in a row would be 12×12×12×12×12=132 . Thus, the probability that the result is at least one head would be 1−132=3132 .结果一 题目 A coin is tossed five times. What is the probability that the result has at least one hea...
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True or False: If a coin is tossed 100 times, it is not likely that the number of heads will be exactly 50, but it is likely that the percentage of heads will be exactly 50%. Explain. Law of Large Numbers: The law of large numbers says that as the size of the sample...
A coin is tossed 500 times with the following frequencies of two outcomes: head: 240 times, tail: 260 times. Find the probability of occurrence of each of these events. View Solution Two coins are tossed simultaneous 1000 times with the following frequencies of different outcomes: Two heads: ...
百度试题 结果1 题目A fair coin is tossed 3 times. What is the probability of at least two consecutive heads? C( A)1/8 (B) 1/4 ( C ) 3/8 (D) 1/2 (B) 3/4 相关知识点: 试题来源: 解析 C 反馈 收藏
In an experiment of tossing a coin, if the coin is tossed 100 times and the head appears 45 times. What is the probability of getting a tail? A. 0.45 B. 0.55 C. 0.5 D. 1 相关知识点: 试题来源: 解析 B。解析:共抛 100 次,出现正面 45 次,则出现反面的次数为 100 - 45 = 55 ...
一枚硬币掷3次,每次都有正反两种可能,所以总共有2^3=8种可能的结果。 第二步,我们计算至少有2次连续正面朝上的结果数。这种情况有3种可能:正正反、正正正、反正正。 第三步,我们根据条件概率的公式,计算至少有2次连续正面朝上的概率。概率等于满足条件的结果数除以总的结果数,即3/8。
A fair coin is tossed repeatedly. The probability that the first head occurs on the nth toss is P(n)=(12)^n. When this game is repeated many times, the average number of tosses required until the first head occurs isE(n)=∑limits_(n=1)^∞nP(n).(This value is called theexpected...