百度试题 题目If a fair coin is tossed twice, what is the probability of obtaining heads both times? A. 1/4. B. 1/2. C. 3/4. D. 1.相关知识点: 试题来源: 解析 A 略 反馈 收藏
If a fair coin is tossed twice, what is the probability of obtaining heads both times?A. 1/4.B. 1/2.C. 3/4.D. 1. 正确答案:A 分享到: 答案解析: The probability of tossing a head, H, is P(H) = 1/2. Since these are independent events, the probability of two heads in a ...
百度试题 结果1 题目A fair coin is tossed n-times such that the probability of getting at least one head is at least 0.9.Then the minimum value of n is 4 相关知识点: 试题来源: 解析 4 反馈 收藏
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...
A fair coin is tossed. If head appears, a fair dice is tossed once and the number on the upper face noted. If tail appears, the fair dice is tossed twice independently and the sum on the upper faces is noted. Then the probability that the noted number is 3, is ...
A fair coin is tossed independently twice. The random variable��counts the number of heads��that appeared. Compute the cumulative distribution��(��)of��.
A fair coin is tossed twice. What is the probability that it lands on heads exactly once? What is the probability of having a single head after flipping 4 coins? You toss a coin and randomly select a number from 0 to 9. What is the probability of getting...
A fair coin is tossed twice. What is the probability that it lands on heads exactly once? What is the conditional probability that exactly four heads appear when a fair coin is flipped 5 times, given that the first flip came up tails?
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
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。