一道数学概率问题 英文题目哦(a) In the national lottery, you identify 6 balls from a set of 49 balls. Then 6 balls are selected at random from the 49 balls and you get a prize if at least 3 of these match the balls you identified. (Ignori

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一道数学概率问题英文题目哦(a)Inthenationallottery,youidentify6ballsfromasetof49balls.Then6ballsareselectedatrando

一道数学概率问题 英文题目哦(a) In the national lottery, you identify 6 balls from a set of 49 balls. Then 6 balls are selected at random from the 49 balls and you get a prize if at least 3 of these match the balls you identified. (Ignori
一道数学概率问题 英文题目哦
(a) In the national lottery, you identify 6 balls from a set of 49 balls. Then 6 balls are selected at random from the 49 balls and you get a prize if at least 3 of these match the balls you identified. (Ignoring the bonus ball for now)
---What is the probability that you get a prize of some sort?
(b) actually it is more complicated; after the 5 balls are selected at random, a sixth “bonus” ball is selected at random and you get a special kind of prize if, of the six balls you identified, 5 were in the selected group of six and the sixth is the bonus ball (as well as all the prizes for matching 3 or more of the first six balls)
---What is the probability you get a special kind of prize just described?
---Keeping this in mind, what is the probability that you get a prize of some sort?

一道数学概率问题 英文题目哦(a) In the national lottery, you identify 6 balls from a set of 49 balls. Then 6 balls are selected at random from the 49 balls and you get a prize if at least 3 of these match the balls you identified. (Ignori
Solution
(a):If this problem needn't arrange all balls in a sequence.
3_balls:1/18424
4_balls:1/211876
5_balls:1/1906884
6_balls:1/13983816
(b):
The probability that get a special kind of prize is 1/44;
Without bonus
3_balls:1/18424
4_balls:1/211876
5_balls:1/1906884
With bonus
2+1_balls:1/51744
3+1_balls:1/810656
4+1_balls:1/9322544
5+1_balls:1/83902896

一道数学概率问题 英文题目哦(a) In the national lottery, you identify 6 balls from a set of 49 balls. Then 6 balls are selected at random from the 49 balls and you get a prize if at least 3 of these match the balls you identified. (Ignori 一道概率,数学期望（均值）的题目 如图 一道概率的题目 一道概率统计题目 大学数学一道概率统计问题 求达人指导 巴朗sat2数学一道概率题是说扔骰子比二大的概率是多少题目是what are the odds in favour of getting a.Umber greater than2 when one die is thrown.用大于2的情况除以不大于二的情况等于4/2=2可是概率不是小于一 问一道mba数学概率题,13题为什么是a 一道数学概率题 看不懂 一道数学计算题目 关于一道数学题目 数学一道题目 一道矩阵、概率结合的题目,求大家帮忙看看,给点思路提示.题目见问题补充中的图片! 问一道统计学的概率分布图问题（英文）The volume of liquid in an unopened 1-gallon can of paint is an example of ___________ .有四个选项：A.the binomial distributionB.a discrete random variableC.a constantD.a continuous random v 求下面一道概率题目的解析 问一道概率与数理统计的题目 一道简单的概率统计题目,急用, 一道关于概率统计参数估计的题目 初3一道有关概率的题目,