A coin is tossed 6 times . Find the probability of getting at least 3 heads . View Solution Three unbiased coins are tossed simultaneously. Find the probability of getting (i) exactly two heads, (ii) at least two heads, (iii) at most 2 heads. ...
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 heads? 答案...
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...
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 fair coin is tossed 3 times. What is the probability of at least two consecutive heads? 一枚质地均匀硬币投掷 3次,国徽面至少连续两次朝上的概率是多少?A. 1/8 B. 1/4 C. 3/8 D. 1/2 E. 3/4 相关知识点: 试题来源: 解析 因此,至少有两次连续正面的概率是3/8,正确答案是C. 3/8。
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
Answer to: A coin is tossed and a die is rolled. Find the probability that the die shows an odd number and the coin shows a tail. By signing up,...
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...