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美国统计代考 STATISTICS代写 STAT 351代写

2022-04-29 09:33 星期五 所属: 统计代写 浏览:80

美国统计代考

STAT 351

Midterm 1 October, 2021

美国统计代考 Please show all your work. It is YOUR responsibility to convince me that you know what you are doing. Clarity, completeness, and organization count.

  1. Please copy and sign the following honour codestatement:

I affirm that I will not give or receive any unauthorized help on this exam, and that all work will be my own. This is not an open book quiz.

  1. Nobooks or lectures notes allowed for this exam.
  2. Please show all your work. It is YOUR responsibility to convince me that you know what you are doing. Clarity, completeness, and organization count.

Q1 [20 marks]  美国统计代考

Let X and Y be identically and independently distributed standard normal random variables:

a)Findthe joint density function of U = X + Y and V =

b)Are U and Vindependent?

c)What is the marginal distribution ofU?

d)What is the marginal distribution of V?

美国统计代考
美国统计代考

Q2 [20 marks]

Suppose that random variables X and Y have joint p.d.f.

Determine the marginal density function of U and V.

Q3 [10 marks]  美国统计代考

Prove that:

美国统计代考
美国统计代考

 

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