Homework 7 Solutions1
Statistics 24410
Date: November 2015
Exercise 90 At rst, it is worth mention that some people consider a geometric random
variable as the number of trials needed for the rst success while some others consider
it as the number of fail

STAT 24410 Homework 2 Solution
This version: October 12, 2015
Question 1. Exercise 29.
We have a Bernoulli process with success probability p and Sn denotes the number of
successes on the rst n trials.
(a) At rst, we mention that the vector (S1 , S2 , S3

Statistics 24410
Homework 4 Solutions
Problem 1 : Exercise 61
(a) Since cfw_Xi i=1,.,n are iid with mean /3,
n
E(X) =
E(Xi )/n = /3.
i=1
Consequently, E( ) = E(3X) = is unbiased.
(b) First calculate the variance of Xi ,
1
Var(Xi ) = E(X2 ) E2 (Xi ) =
i
x2

Statistics 24410, Assignment 6
Due: Thursday, November 12
Required Problems: The numbered exercises are all taken from the homework.pdf le under Course Documents in Chalk.
1. Exercise 72.
2. Exercise 79.
3. Exercise 82.
4. This question considers Bayesian

Statistics 24410, Assignment 8
Due: Tuesday, December 1
Required Problems: The numbered exercises are all taken from the homework.pdf le under Course Documents in Chalk.
1. Exercise 95.
The following three problems only may be worked on in groups of up
to

Statistics 24410, Assignment 4
Due: Tuesday, October 27
NOTE: This assignment is due next TUESDAY, not Thursday.
Your midterm is next Thursday, Oct. 29 8:3010:20am.
Note the early start time. I will NOT give you extra time if you arrive
late.
Bring a sc

Statistics 24400, Assignment 7
Due: Thursday, November 20
Required Problems: The numbered exercises are all taken from the homework.pdf le under Course Documents in Chalk.
1. Exercise 90.
2. Exercise 91.
3. Exercise 92.
4. Exercise 93. Note that part (b)

Statistics 24400, Assignment 3
Due: Thursday, October 22
Required Problems: These problems are all taken from the homework.pdf
le under Course Documents in Chalk.
1. Exercise 49.
2. Problems 23 and 24 in Chapter 5 of Rice.
3. The following R commands will

Statistics 24410, Assignment 2
Due: Thursday, October 15
Required Problems: These problems are all taken from the homework.pdf
le under Course Documents in Chalk.
1. Exercise 29.
2. Exercise 31.
3. Exercise 48.
4. Consider a random variable X with density

Statistics 24410, Assignment 1
Due: Thursday, October 8
Probability quiz: There will be a quiz in class (45 minutes) on Tuesday
October 6 covering basic material about discrete and continuous distributions as well as expected values. The quiz is only 5% o

Statistics 24410, Assignment 0
Due: Never
Note: These problems are taken either from Rice or from the homework.pdf
le under Course Documents in Chalk. Note that some problems in Rice
have answers in the back of the book. These problems cover material that