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• Statistical Inference 统计推断
• Statistical Computing 统计计算
• (Generalized) Linear Models 广义线性模型
• Statistical Machine Learning 统计机器学习
• Longitudinal Data Analysis 纵向数据分析
• Foundations of Data Science 数据科学基础

General Instructions:
1) Do not open the exam booklet until instructed to do so by your proctor (supervising teacher).
2) Before the exam time starts, the proctor will give you a few minutes to fill in the Participant Identification on the cover page of the exam. You don’t need to rush. Be sure to fill in all required information fields and write
3) Readability counts: Make sure the pencil(s) you
4) Once you have completed the exam and given it to the proctor/teacher you may leave the room.
5) The questions and solutions of the COMC exam must not be publicly discussed or shared (including online) for at least 24 hours.
Exam Format:
There are three parts to the COMC to be completed in a total of 2 hours and 30 minutes:
PART A: Four introductory questions worth 4 marks each. You do not have to show your work. A correct final answer gives full marks. However, if your final answer is incorrect and you have shown your work in the space provided, you might earn partial marks.

PART B: Four more challenging questions worth 6 marks each. Marking and partial marks follow the same rule as part $A$.
PART C: Four long-form proof problems worth 10 marks each. Complete work must be shown. Partial marks may be awarded.
Diagrams provided are not drawn to scale; they are intended as aids only.
Scrap paper/extra pages: You may use scrap paper, but you have to throw it away when you finish your work and hand in your booklet. Only the work you do on the pages provided in the booklet will be evaluated for marking. Extra pages are not permitted to be inserted in your booklet.
Exact solutions: It is expected that all calculations and answers will be expressed as exact numbers such as $4 \pi, 2+\sqrt{ } 7$, etc., rather than as $12.566,4.646$, etc.

Awards: The names of all award winners will be published on the Canadian Mathematical Society website.

Please print clearly and complete all information below. Failure to print legibly or provide complete information may result in your exam being disqualified. This exam is not considered valid unless it is accompanied by your test supervisor’s signed declaration.

1. Given/First Name: (Required)
2. Sur-/Last Name: (Required)
3. Are you currently registered in full-time attendance at an elementary, secondary or Cégep school, or home schooled and have been since at least September $15^{\text {th }}$ of this year? (Required for qualification)
4. Are you a Canadian Citizen or a Permanent Resident of Canada (regardless of your current address)? (Required for qualification) At a party, if each kid took one apple from the fruit bucket then 7 apples would still remain in the bucket. However, if each kid had an appetite for two apples, the supply would be 16 apples short. How many kids were at the party?It is possible to create 24 distinct four digit numbers, where each number uses each of the digits $1,2,3$, and 4 exactly once. How many of these are divisible by 4 ?One person can make $n$ objects in an hour. Ann begins at 10:00 AM, Bob begins at 10:20 AM, then Cody and Deb begin at 10:40 AM. Working at the same constant speed, by 11:00 AM, they have made 28 objects. What is $n$ ?If $a, b$ are the roots of the polynomial $x^2+x-2020=0$, find $a^2-b$.The set $S$ contains 6 distinct positive integers. The average of the two smallest numbers is 5 and the average of the two largest is 22 . What is the greatest possible average of all the numbers in the set $S$ ?Alice places a coin, heads up, on a table then turns off the light and leaves the room. Bill enters the room with 2 coins and flips them onto the table and leaves. Carl enters the room, in the dark, and removes a coin at random. Alice reenters the room, turns on the light and notices that both coins are heads. What is the probability that the coin Carl removed was also heads?

# 加拿大数学公开赛代写

1) 在您的监考人员（指导老师）指示之前不要打开试卷。
2) 考试时间开始前，监考人员会给您几分钟时间填写考试封面上的参与者身份证明。你不必着急。请务必填写所有必填信息字段并写下
3) 可读性计数：确保铅笔是您
4) 完成考试并将其交给监考人员/老师后，您可以离开房间。
5) COMC 考试的题目和答案至少在 24 小时内不得公开讨论或分享（包括在线）。

COMC 共有三个部分，总共需要 2 小时 30 分钟完成：
A 部分：四道介绍性问题，每道 4 分。你不必展示你的作品。正确的最终答案给满分。但是，如果您的最终答案不正确，并且您在提供的空白处展示了您的作品，您可能会获得部分分数。

B 部分：另外四道具有挑战性的问题，每道 6 分。标记和部分标记遵循与部分相同的规则一个.
C 部分：四道长证明题，每道 10 分。必须展示完整的作品。可能会获得部分分数。

1. 名字/名字：（必填）
2. 姓/姓：（必填）
3. 您目前是在小学、中学或 Cégep 学校注册全日制就读，还是在家上学并且至少从 9 月开始15th 今年的？（资格要求）
4. 您是加拿大公民还是加拿大永久居民（无论您的当前地址如何）？（资格要求）在聚会上，如果每个孩子从水果桶里拿一个苹果，那么桶里还剩下 7 个苹果。但是，如果每个孩子有两个苹果的胃口，那么供应量将是 16 个苹果。有多少孩子参加了聚会？可以创建 24 个不同的四位数字，其中每个数字使用每个数字1,2,3, 和 4 恰好一次。其中有多少可以被4整除？一个人可以做n一个小时内的对象。Ann 上午 10:00 开始，Bob 上午 10:20 开始，然后 Cody 和 Deb 上午 10:40 开始。以相同的恒定速度工作，到上午 11:00，他们已经制作了 28 个对象。什么是n？如果一个,b是多项式的根X2+X−2020=0， 寻找一个2−b.集合小号包含 6 个不同的正整数。两个最小数字的平均值是 5 ，两个最大数字的平均值是 22 。集合中所有数字的最大可能平均值是多少小号? 爱丽丝将一枚硬币朝上放在桌子上，然后关掉灯离开房间。比尔带着 2 个硬币进入房间，把它们扔到桌子上然后离开。卡尔在黑暗中进入房间，随意取出一枚硬币。爱丽丝重新进入房间，打开灯，发现两个硬币都是正面的。卡尔取出的硬币也是正面的概率是多少？

## 有限元方法代写

assignmentutor™作为专业的留学生服务机构，多年来已为美国、英国、加拿大、澳洲等留学热门地的学生提供专业的学术服务，包括但不限于Essay代写，Assignment代写，Dissertation代写，Report代写，小组作业代写，Proposal代写，Paper代写，Presentation代写，计算机作业代写，论文修改和润色，网课代做，exam代考等等。写作范围涵盖高中，本科，研究生等海外留学全阶段，辐射金融，经济学，会计学，审计学，管理学等全球99%专业科目。写作团队既有专业英语母语作者，也有海外名校硕博留学生，每位写作老师都拥有过硬的语言能力，专业的学科背景和学术写作经验。我们承诺100%原创，100%专业，100%准时，100%满意。

## MATLAB代写

MATLAB 是一种用于技术计算的高性能语言。它将计算、可视化和编程集成在一个易于使用的环境中，其中问题和解决方案以熟悉的数学符号表示。典型用途包括：数学和计算算法开发建模、仿真和原型制作数据分析、探索和可视化科学和工程图形应用程序开发，包括图形用户界面构建MATLAB 是一个交互式系统，其基本数据元素是一个不需要维度的数组。这使您可以解决许多技术计算问题，尤其是那些具有矩阵和向量公式的问题，而只需用 C 或 Fortran 等标量非交互式语言编写程序所需的时间的一小部分。MATLAB 名称代表矩阵实验室。MATLAB 最初的编写目的是提供对由 LINPACK 和 EISPACK 项目开发的矩阵软件的轻松访问，这两个项目共同代表了矩阵计算软件的最新技术。MATLAB 经过多年的发展，得到了许多用户的投入。在大学环境中，它是数学、工程和科学入门和高级课程的标准教学工具。在工业领域，MATLAB 是高效研究、开发和分析的首选工具。MATLAB 具有一系列称为工具箱的特定于应用程序的解决方案。对于大多数 MATLAB 用户来说非常重要，工具箱允许您学习应用专业技术。工具箱是 MATLAB 函数（M 文件）的综合集合，可扩展 MATLAB 环境以解决特定类别的问题。可用工具箱的领域包括信号处理、控制系统、神经网络、模糊逻辑、小波、仿真等。

assignmentutor™您的专属作业导师
assignmentutor™您的专属作业导师