Stat 23400: Spring 2013
Final Exam Information
STAT 23400 Spring 2013 Final Exam will be held WEDNESDAY, JUNE 12 at 6:30pm
Exam Locations:
KENT 107: MWF Sections 01 and 02 (Scott Powers and Linda Coll
Univariate Discrete Random Variable in R
Stat 234 Section 3, Miaoyan Wang
April. 18th, 2015
Prerequisite:
If X Binom(20, 0.5), how would you nd P(X=15)? How about P (X 15) and P (X 15)?
By hand:
In
STAT 23400: Win 2017
HW#7 (Solutions)
c 2017 Linda Collins.
For your personal use only. Do not distribute or share!
Sharing this document in print, email, or online (or any other medium), in whole or
Final Exam Formula Sheet
1. Sampling distribution of the sample mean and sample count
For quantitative populations with mean and standard deviation , assuming independent
(or nearly independent 10n <
STAT 23400: Winter 2017
Homework #4 (Solutions)
c 2017 Linda Collins.
For your personal use only. Do not distribute or share!
Sharing this document in print, email, or online (or any other medium), in
STAT 23400: HW #2
Written up by Jon Eskreis-Winkler
October 4, 2017
1: Suppose you want to estimate the percentage of videos on YouTube that are
cat videos. It is impossible for you to watch all video
Preliminaries Exercises
P.1 For each of the following research questions identify the observational units and variable(s).
a) An article in a 2006 issue of the Journal of Behavioral Decision Making re
Statistical Models/Method-1 STAT23400
Lecture 04
Coverage:
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Review of L03
2.2 Conditional Probability and Independence
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Conditional Probability and Bayes Theorem
Independence
2.3 Discrete Random Var
Statistical Models/Method-1 STAT23400
Lecture 1
Textbook Coverage
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1.1 Data in R
1.2 Summarizing univariate data
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Graphical Tools :
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Histogram
Box and Whiskers Plot
Numerical Tools :
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1.2.
Statistical Models/Method-1 STAT23400
Lecture 03
Coverage:
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Review of Lecture 02
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2.1 Basic Ideas of Probability
2.2 Counting Formulas
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Multiplication Rule
Number of Permutations
Number of
Statistical Models/Method-1 STAT23400
Lecture 05
Coverage:
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Review: Discrete Random Variable
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2.4 Hypothesis Tests and p-Values
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Bernoulli(p), Bin(n, p), Geo(p), NBinom(s, p)
2.4.1 Binomial T
Statistical Models/Method-1 STAT23400
Lecture 06
Coverage:
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Review of Univariate Discrete Random Variable (handout)
2.6 Joint Distribution of Random Variables
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Marginal and Conditional Distrib
Statistical Models/Method-1 STAT23400
Lecture 09
Coverage:
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Transforming Random Variables (cdf, expectation, moment
generation functions)
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3.4 Normal Distribution
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3.6 Q-Q plot
Transforming Random
Statistical Models/Method-1 STAT23400
Lecture 2
Coverage:
I 1.2 Univariate Data
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1.3 Multivariate Data
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1.2.3. More comment on mean and median
1.2.4. Variance and Standard Deviation
Scatter
Statistical Models/Method-1 STAT23400
Lecture 07
Coverage:
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2.6.3 Linear Combination of Random Variable
2.7 More Discrete Random Variable Examples
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Hypergeometric Distribution
Poisson Distribu
Statistical Models/Method-1 STAT23400
Lecture 09
Coverage:
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Review (2010 Midterm Problem)
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3.3 Higher Moments and mgf
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3.4 Normal Distribution
Multivariate Continuos Random Variables
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3.7.4 mgf
1.3
Here is a histogram of the distribution of last digits. The majority of remainders are on
the low side (like between 0 and 4) so it is possible that there is some bias or error
introduced in takin
Pruim 1.2.5
(a)
histogram(~ births, xlab="Number of U.S. births each day in 1978")
(b)
xyplot(births ~ dayofyear, xlab="1978 day of year", ylab="Number of
U.S. births each day in 1978")
There seem to
STAT 23400: Fall 2017
Homework #4
Turn in this homework only as a doc, docx, or pdf document
produced from R markdown. Only problems 6,7,8 can be
handwritten. Scan your solutions to these problems and
STAT 23400: Winter 2017
Homework #2 (Solutions)
c 2017 Linda Collins.
For your personal use only. Do not distribute or share!
Sharing this document in print, email, or online (or any other medium), in
STAT 23400: Win 2017
HW#9 (Solutions)
c 2017 Linda Collins.
For your personal use only. Do not distribute or share!
Sharing this document in print, email, or online (or any other medium), in whole or
STAT 23400: Winter 2017
HW#8 (Solutions)
c 2017 Linda Collins.
For your personal use only. Do not distribute or share!
Sharing this document in print, email, or online (or any other medium), in whole
STAT 23400: Winter 2017
Homework #6 (Solutions)
c 2017 Linda Collins.
For your personal use only. Do not distribute or share!
Sharing this document in print, email, or online (or any other medium), in
STAT 23400: Winter 2018
Midterm Practice
1. Use 68-95-99.7 rule only, show that the first quartile Q1 of standard normal density is between
-1 and 0.
HINT: Draw a normal sketch to support your answer.