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
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。
If 1 coin is tossed three times, Indicate the probability of the following events at least two heads / tails. View Solution Two coins are tossed simultaneously. Then, the value of E(X), where X denotes the number of heads is View Solution ...
The probability that at least one head turns up, is a. 116 b. 216 c. 1416 d. 1516 View Solution A coin is tossed 7 times, Then probability that at least 4 consecutive heads appear is View Solution Knowledge Check Question 1 - Select One A coin is tossed four times. The probability...
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...
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...
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,...
A coin is tossed five times. What is the probability that the result has at least one heads? 相关知识点: 试题来源: 解析 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 wou...
A fair coin is tossed twice. What is the probability that it lands on heads exactly once? If you have a fair coin and want to calculate the probability that if you flip the coin 20 times, you will get at least 14 heads. What is the probability that you will...
When tossed, a certain coin has equal probability of landing on either side. If the coin is tossed 3 times, what is the probability that it will land on the same side each time? 选项: A、 B、 C、 D、 E、 答案: B 提问列表 提问 提问: 我的想法是第一次正反面选一面,就1/2,第...