百度试题 结果1 题目A fair coin is tossed 5 times. What is the probability that it lands tails up exactly 3 times? A: B: C: D: 相关知识点: 试题来源: 解析 A(6/1)ol 反馈 收藏
1(Maths Olympiad Competition Manual Book3 《Probability》 Pr5&6 Question #7)A fair coin is tossed 5 times. What is the probability of getting the outcome 'head' for all 5 tosses? 2(Maths Olympiad Competition Manual Book3 《Probability》 Pr5&6 Question #7)A fair coin is tossed 5 times...
A Fair coin is tossed 5 times , find the probability that a) coin shows exactly three times head b) no head. View Solution Exams IIT JEE NEET UP Board Bihar Board CBSE Free Textbook Solutions KC Sinha Solutions for Maths Cengage Solutions for Maths ...
A fair coin is tossed 5 times. What is the probability of obtaining no more than two heads? A coin is flipped 10 times where each flip comes up either heads or tails. How many possible outcomes contain at most four tails? You have a fair coin...
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。
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
If a fair coin is tossed 5 times, what is the probability of tossing exactly 3 heads? A fair coin is tossed 5 times. Find the probability that all 5 tosses are tails. Indicate true or false, and explain your reasoning (be sure to show all calculations); a. If a die i...
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 fair coin is tossed four times. Let X denote the number of heads ... 07:13 A fair die is tossed. Let X denote twice the number appearing. Find... 03:21 A fair die is tossed. Let X denote 1 or 3 according as an odd or an ev... 02:02Exams...
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...