Stats 120A Homework 8: Due Friday, Dec. 6
1. Section 3.8 Exercise 2, p. 174.
2. Section 3.8 Exercise 4, p. 174.
3. Section 3.8 Exercise 17, p. 174.
4. Let X1 , . . . , Xn be a random sample from an Exponential distribution with paramiid
eter . That is, X1
Stats 120A Homework 8 Solutions
This homework assignment is worth a total of 21 points. Problems marked with
an asterisk (*) are graded based on correctness. The remaining problems are graded
based on completion (full credit as long as you completed the p
Leroy Zhou, Michelle Harake, Yuyi Chen
# The difference between "replace" true and "replace" false is, when it is true there are more than
200 reasonably probable values, giving
A Brief Guide to Writing Beautiful Mathematical Proofs
A mathematical proof is a sequence of logical statements, each one being either an assumption
or a conclusion clearly following from an assumption or previously proved result. A proof
should ow natura
Stats 120A Homework 2 Solutions
This homework assignment is work 24 points. Problems marked with an asterisk (*)
are graded based on correctness. The remaining problems are graded based on completion
(full credit as long as you completed the problem, rega
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Containment: a set A is contained in another set B = A is a subset of B
The Empty Set: some events are impossible = null set
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# The difference between "replace" true and "replace" false is, when it is true there are more than 200 reasonably probable values, giving incompatible results with R<2.2.0. If replace is false, these probabilities are applied sequentially
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Institut des Sciences de lEvolution
Universit Montpellier II
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Stats 120A Homework 7: Due Friday, Nov. 22
1. Section 4.4 Exercise 8, p. 240.
2. Assume X1 , . . . , Xn are independent and identically distributed Exponential random variables with parameter . That is, the pdf of Xi , i = 1, . . . , n is
f (x) =
ex x > 0
Stats 120A Homework 6: Due Friday, Nov. 15
1. Section 4.1 Exercise 1, p. 216. (The answer is in the back of the book, so you must
show your work to receive credit!)
2. Section 4.1 Exercise 7, p. 216.
3. Section 4.1 Exercise 8, p. 216.
4. Section 4.2 Exerc
Stats 120A Homework 1: Due Friday, Oct. 4
1. Section 1.4 Exercise 1, p. 15.
2. Five applicants (Jim, Don, Mary, Sue, and Nancy) are available for two identical
jobs. (Jim and Don are male; Mary, Sue, and Nancy are female.) A supervisor
selects two applica