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{200\times[(17-\MU) ^2\times\frac{2}{38}+ ( -1-\MU) ^2\times\frac{36}{38}]}$$ Similarly, we can calculate Strategy $B $ in the same. And finally computing in R: NetGain = function (n, prob, value, gain) { mu = n * (sum (prob * value)) se = sqrt (n * SUM ((VALUE-MU) ^ 2 * prob)) if (gain >= 0) { z = (gain + 0.5-mu)/SE print (1-pnorm (z)) } else { z = (gain-0.5-mu)/SE print (Pnorm (z)) }} NetGain (n = prob = C (2/38, 36/38), value = C (+,-1), gain = 0) [1] 0.4722959 # anetgain (
m = n * p if (id = = 0) { print (sum (dbin Om (0: (m-1), N, p)) } else{ print (SUM (dbinom ((M + 1): N, N, p)) }}> Dieroll (60000, 1/6, 0) [1] 0.4983005G T Dieroll (30000, 1/6, 1) [1] 0.4962232> Dieroll (30000, 1/6, 0) [1] 0.4975965Thus $ $P (B) Problem 8A die has 2 red faces, 2 blue faces, and 2 green faces. It is rolled. Let $R $ is the number of times red faces appear, and $B $ The number of times blue faces appear.8A the random variable $R $ is the sum of draws at random with rep
}\times c_{5}^{2}+c_{8}^{2}\times c_{5}^{4}}{c_{13}^{6}}\doteq0.4895105$$ R Code:> Sum (dhyper (x = C (2, 4), M = 8, n = 5, k = 6)) [1] 0.4895105Problem 8A class has 3 teaching assistants (TAs). Each TA tosses a coin times. Find the chance that at least one of the TAs gets exactly 5 heads.Solution:There is processes of the binomial distribution. $ $P (\text{at least one of the Tas gets exactly 5 heads among tosses}) $$ $$=1-p (\text{none of the Tas gets exactly 5 hea DS among tosses}) $$ $$=1-c
Chapter I. Stochastic events and probabilitiesChapter two stochastic variables and their distributionsChapter three multivariate random variables and their distributionsThe fourth chapter law of large numbers and the central limit theoremThe fifth chapter statistic and its distributionThe sixth chapter parameter estimationThe seventh chapter hypothesis testEighth chapter analysis of variance and regression analysisChapter I. Stochastic events and probabilities1.1 Random events and their operatio
As a Java programmer, the most painful thing is to choose a range too wide, can read too many books, often easily confused. I'd like to pick out some of the technical books I've read and recommend them to you in the order of study, especially to the Java programmers who want to keep improving their skills.
First, Java programming into categoriesfor programmers who do not have Java programming experience to get started, to read any introductory books
From: http://www.math.org.cn/forum.php? MoD = viewthread tid = 2045 extra = Page % 3d42
Note:This is the preface to Mr. Wu hongxi's book the preliminary study of the LI Shi ry. Although it is about mathematics, I think our studyIt is very helpful, so I will spend some time posting it and share it with you.**************************************** **********************************To readers"Your Career sh
. Video player with subtitles 8, mobile phone location9, can drag and drop text reader 10, chat room11, queue processing orders 12, offline messages13, the new message reminds 14, WEBQQ's communication15, flowers and falling animation 16, MP3 player17, tracking User location 18, with the browser to take pictures and video19, Class iphone mouse Drag effect 20, file drag and drop upload21, Desktop Reminder tool 22, micro-blog information real-time push23, online Code Editor 24, preview the content
, lent me, although I do not know what the book specifically to introduce what, read it again;Iii. bibliography to be read1. "Three bodies"2. "Dark Forest"3, "Death eternal Life"The above three book is rebels recommended three-body trilogy, online voice is good, must win;4, "Everyone is Product Manager", with my current work related, heard also good;5, "positioning", I recommended to me a small partner, he
Linux Study Plan BookMy name is frail, scholar after the old boy education operation class 5-6 months after the study I must achieve the salary goal is 12k/month. In order to achieve this goal, I will take the following action or plan1 Don't be late for class, absent from school.2 listen carefully in class and practice carefully3 Carefully preview positive Exchange discussion4 Finish the homework after the
My name is Tao Jia, from a remote rural area in Jiangxi province, from a young age to eat as much as possible after graduation has done a lot of hard work at the bottom. Feel a lot of people's sarcasm, today the honor of the old boy's Linux full class hope to pass 6 months of study salary to reach 20K. To prove that I can do it. In order to achieve this goal I will pass as hard as down:1, serious classes do not leave early, innocent absence2, usually
My CSDN Blog address:Lw_power's Column-Blog channel-csdn.netHttp://blog.csdn.net/lw_powerShangang teacher "Spring4 Video Tutorial" study notes (1)Shangang teacher "Spring4 Video Tutorial" study notes (2)Shangang teacher "Spring4 Video Tutorial" study notes (3)Shangang teacher "Spring4 Video Tutorial" study notes (4)Sha
iterate through the items in a sequence. For more efficient2. What is the difference between break and continue?Answer: Break jumps out of the current loopContinue jumps back to the top of the current loop3. When does the ELSE clause of a loop execute?A: The ELSE clause of while and for is executed once from the loop. If there is a break statement, it immediately leaves the loop and skips the Else section4. How to write a counter-based loop in Python?For: while x: Print (x) x-=1109876543215. Ho
. Video player with subtitles 8, mobile phone location9, can drag and drop text reader 10, chat room11, queue processing orders 12, offline messages13, the new message reminds 14, WEBQQ's communication15, flowers and falling animation 16, MP3 player17, tracking User location 18, with the browser to take pictures and video19, Class iphone mouse Drag effect 20, file drag and drop upload21, Desktop Reminder tool 22, micro-blog information real-time push23, online Code Editor 24, preview the content
Very good Linux study book, recommend everyone to seeThis book is a high-quality Linux technology self-study book written by a number of Red Hat Architects (RHCA) based on the RHEL7 system, each chapter of knowledge points from a practical and strong coherence, ideal for Lin
1. Linear can be divided intoFor a data set:If there is a hyper-planar x that can precisely divide the positive and negative samples in D into the sides of S, the hyper-plane is as follows:Then the data set D is linearly divided, otherwise, it is not possible to be divided.W is called the normal vector, which determines the direction of the super plane, and B is the displacement amount, which determines the distance between the super plane and the origin point.The distance from any point in the
improve the performance of your system by using an optimized hidden device during the query process.B + trees are most commonly used, and performance is not bad, both for range queries and single-valued queries. In particular, the scope of the query, must use the B + tree in order to be able to.Hash if only for the single-valued query speed than the B + tree faster.The use of bitmaps is very limited, only a few cases can be used, it is important to determine the real appropriate use of this ind
ordinary study, but also need to work, to actively deal with the problems encountered in the work, seize every opportunity to enhance their own, not afraid of problems, do not evade the problem. Raising yourself is more important than anything.
Learn to communicate with more experienced people and listen to the pertinent opinions of predecessors. Exercise your ability to express, exercise your interpersonal skills.
By following the old boy's
Learn the Linux project bookMy name is Liu Chang, after the old boy education OPS 5 months study, I must achieve the salary target is 12K, for this goal I willtake the following 10 major actions or programmes :
Uninstall computer all games, 5 months study period no download play
Guaranteed 10 hours of study time per day
Listen carefully in class every day
predecessors of the blog. Learn more about the relevant knowledge.7, standardize their own learning habits, like the old boy's tradition, do not shoot is already, a shot is absolutely professional norms.8, more and others consult, explore, help others, enhance their knowledge at the same time, enhance their self-cultivation and quality.9, learn to self-regulation, in the face of pressure do not retreat, not discouraged.In this technology for the king of the Times, there are rare Daniel teachers
My name is ginger wealth, after the old boy education ops 5-6 months after the study, I must achieve the salary target is 10K, due to work reasons to self-defined the following study plan:1. Practice the Linux commands after the work is done.2. Review the following lessons from the previous lesson every day, do not understand and after recording, and students to study
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