A fair coin is tossed 4 times. The probability that heads exceed tails in number is View Solution A bag contains 16 coins of which 2 coins are counterfeit with heads on the both sides. The rest are fair coins. One is selected at random from the bag and tossed. The probability of getti...
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。
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 4 times. How many outcomes are there in the sample space? You flip four 2-sided coins and roll one 6-sided die. How many unique outcomes are there for this five-part experiment? A probability experiment consists of rolling a fair...
A fair coin is tossed 4 times. Find the probability that you get 2 heads. A coin is tossed three times. a. Find the probability that exactly one of the tosses comes up tails. b. Find the probability that the last two tosses come up heads. c. Find the probability that...
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 sampl...
A fair coin is tossed 3 times. What is the probability of at least two consecutive heads?( ) A.18 B.14 C.38 D.12 E.34相关知识点: 试题来源: 解析 C First, there are 23=8 ways to flip the coins, in order. The ways to get two consecutive heads are HHT and THH. The way to...
题目(2013 AMC 8 Problem, Question # 8)A fair coin is tossed 3 times. What is the probability of at least two consecutive heads?( ) A. 18 B. 14 C. 38 D. 12 E. 34 相关知识点: 试题来源: 解析C First, there are 23=8 ways to flip the coins, in order.The ways to get two ...
A fair coin is tossed 7 times. (a) What is the probability of obtaining 3 heads? (b) What is the probability of obtaining at most 3 heads? Binomial Distribution: Binomial probability distribution in simple terms is a depicti...
A fair coin is tossed 3 times. What is the cumulative probability that the number of heads is less than or equal to 2? A. 0.5 B. 0.675 C. 0.875 D. 0.025 In tossing 4 fair coins what is the expected number of heads let the random var...