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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
legibly.
3) Readability counts: Make sure the pencil(s) you use are dark enough to be
clearly legible throughout your exam solutions.
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)
6. Let $x$ be a real number such that $(x-2)(x+2)=2021$. Determine the value of $(x-1)(x+1)$.Julia had a box of candies and ate them all in 4 days. On the first day she ate $\frac{1}{5}$ of the total number of candies. On the second day she ate half of what was left after the first day. On the third day she ate half of what was left after the second day. What portion of the candies initially contained in the box did she eat on the fourth day? Express your answer as a reduced fraction.Two circles, each of radius 5 units, are drawn in the coordinate plane such that their centres $A$ and $C$ have coordinates $(0,0)$ and $(8,0)$ respectively. How many points of the plane where both coordinates are integers lie within the intersection of these circles (including its boundary)?Marija travels to school by a combination of walking and skateboarding. She can get there in 38 minutes if she walks for 25 minutes and skateboards for 13, or in 31 minutes if she walks for 11 and skateboards for 20 . How long (in minutes) would it take her to walk to school?

A bag contains two regularly shaped (cubic) dice which are identical in size. One die has the number 2 on every side. The other die has the numbers 2 on three sides and number 4 on each side opposite to one that has number 2. You pick up a die and look at one side of it, observing the number 2 . What is the probability the opposite side of the die has the number 2 as well?

加拿大数学公开赛代写

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。评分和部分评分遵循与 A 部分相同的规则。
C 部分：四道长篇证明题，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）
5. 电子邮件地址：（可选）
6. 让X是一个实数，使得(X−2)(X+2)=2021. 确定价值(X−1)(X+1).Julia有一盒糖果，4天就吃完了。在她吃饭的第一天15糖果的总数。第二天，她吃了第一天剩下的一半。第三天，她吃了第二天剩下的一半。第四天，她吃了盒子里最初装的糖果的哪一部分？将你的答案表达为一个简化的分数。在坐标平面上绘制两个圆，每个半径为 5 个单位，使得它们的中心一个和C有坐标(0,0)和(8,0)分别。两个坐标都是整数的平面上有多少点位于这些圆的交点（包括其边界）内？Marija 结合步行和滑板去学校。如果她步行 25 分钟和滑板 13 分钟，她可以在 38 分钟内到达那里，或者如果她步行 11 分钟和滑板 20 分钟，她可以在 31 分钟内到达那里。她步行去学校需要多长时间（以分钟计）？

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