Hyper Geometric
5.2: The Discrete Uniform Distribution
If a random variable can take on k different values with equal probability, we say that it has a discrete
uniform distribution.
Definition 5.1:
A random variable X has a discrete uniform distribution,
Chapter 1: Introduction
1.1 Combinatorial methods
In many problems of statistics, we must list all the alternatives that are possible in a given
situation or at least determine how many different possibilities there are.
Theorem 1.1 If an operation consis
Chapter 2: Probability
Sample Space:
Denote as
Definition 2.1: The set of all possible outcomes of an experiment is called the Sample Space.
Example 2.1: Toss a coin - Head, or Tail, S = cfw_,
Example 2.2: Roll a dice - 1, 2, 3, 4, 5,6, S = cfw_1,2,3,4,
EXAM I STUDY GUIDE STAT 326
This is a study guide for material covered by Exam 1. This guide is not comprehensive,
but just a general guideline. All practice problems (presented in the online quiz, lab and
homework) as well as lecture notes are the primar
STAT 326
Homework 7
Fall 2011
Show all your work for full credit!
As a general rule, round to the third decimal place, except when reporting prices, which
should be rounded to the second decimal place.
Insurance claims. A medium-sized automobile insurance
STAT 326
Homework 5
Fall 2011
Show all your work for full credit! Unless noted otherwise, round to the 3rd decimal place.
Transit planning. Imagine you have been retained as a consultant by the local public transit authority to analyze
demand for city bus
LAB 8Solutions: Total: 25 points and 1 Bonus point
Fall 2011
The Current Population Survey (CPS) is used to supplement census information between census
years. These data consist of a random sample of 534 persons from the CPS, with information on
wages an
STAT 326
Homework 6
Fall 2011
Show all your work for full credit! Unless noted otherwise, round to the 3rd decimal place.
Box Oce Gross and Pay per View Sales. Consider the same problem of predicting subsequent sales for
movies based on Box Oce gross sale
FINAL EXAM STUDY GUIDE STAT 326
Below is a study guide for material covered on Exam 1 and Exam 2, followed by the new material
after Exam 2. This guide is not comprehensive, but just a general guideline. All practice problems
(presented in the online quiz
STAT 326
Fall 2011
Lab 10
due at the end of the Lab period
General Instructions for Lab work:
1. Sign your name on the class list as you arrive to the Lab.
2. Work in groups of at most 3 (but you can work independently as well, if you wish).
However, if y
STAT 326
Homework 10
Fall 2011
Show all your work for full credit! Unless noted otherwise, round to the 3rd decimal place.
Internet Trac at ISU In December 1995, Iowa State University updated their Internet circuit from a T 1 line
that could transmit data
LAB 5 KEY: Total: 25 points and 1 Bonus point
Fall 2011
Box Oce Gross and Pay per View Sales. Cable and Satellite TV companies need to decide
which movies to include as part of their Pay per view packages. It is expected that a determining
factor in the p
STAT 326
LAB 3 KEY: Total: 25 points and 1 Bonus point
Fall 2011
Annual Beef Consumption. A national food retailer is looking to estimate beef consumption per capita for the
upcoming year. Factors that could possibly eect beef consumption have been tracke
STAT 326
Fall 2011
Lab 11
due at the end of the Lab period
General Instructions for Lab work:
1. Sign your name on the class list as you arrive to the Lab.
2. Work in groups of at most 3 (but you can work independently as well, if you wish).
However, if y
STAT 326
Fall 2011
LAB 2
due at the end of the Lab period
General Instructions for Lab work:
1. Sign your name on the class list as you arrive to the Lab.
2. Work in groups of at most 3 (but you can work independently as well, if you wish).
3. Write down
STAT 326
LAB 1 KEY: Total: 25 points
Fall 2011
Government transfer payments.
(a) [1pt.] Fill in the blanks: The explanatory variable (x) in this problem is
the amount of transfer payments received by a family and the response variable (y) is
the money spe
LAB 4 KEY: Total: 25 points and 1 Bonus point
Fall 2011
Annual Beef Consumption. A national food retailer is looking to estimate beef consumption per
capita for the upcoming year. Factors that could possibly eect beef consumption have been tracked
for the
STAT 326
Fall 2011
LAB 4
due at the end of the Lab period
General Instructions for Lab work:
1. Sign your name on the class list as you arrive to the Lab.
2. Work in groups of at most 3 (but you can work independently as well, if you wish).
However, if yo
LAB 2 KEY: Total: 25 points
Fall 2011
Small Business Idea. You have always wanted to start your own business, and the specialty
coee-bar business appeals to you. You have a friend at the Association of Specialty Coee Retailers
who helps you obtain data on
STAT 326
Fall 2011
LAB 1
due in lab
Show all your work for full credit!
General Instructions for Lab work:
1. Sign your name on the class list as you arrive to the Lab.
2. Work in groups of at most 3 (but you can work independently as well, if you wish).
STAT 326
Fall 2011
LAB 3
due at the end of the Lab period
General Instructions for Lab work:
1. Sign your name on the class list as you arrive to the Lab.
2. Work in groups of at most 3 (but you can work independently as well, if you wish).
However, if yo
STAT 326
Homework 8
Fall 2011
Show all your work for full credit! Unless noted otherwise, round to the 3rd decimal place.
The Current Population Survey (CPS) is used to supplement census information between census years. These data
consist of a random sam
STAT 326
HW 3
Solutions
(a) Obtain (in JMP) and print the scatterplot matrix for all the variables in this data set.
(b) Use the above plots and correlations to describe the relationships between each pair of variables. Summarize your results.
The correla
STAT 326
Homework 11
Fall 2011
Show all your work for full credit! Unless noted otherwise, round to the 3rd decimal place.
1. SEATAC ights. Using the data set provided for Lab 10, check whether the residuals from the
regression model with trend and season
STAT 326
SOLUTION TO HOMEWORK 2
Fall 2011
1. The four Cs.
(a) Based on the scatter plot and the estimated regression line we can conclude that the
relationship between weight and price of the diamonds is linear, positive and strong. In
other words, the he
STAT 326
Homework 3
Fall 2011
Show all your work for full credit! Unless noted otherwise, round to the 3rd decimal place.
Shipping cost analysis. Multiple regression is commonly used by accountants in cost analysis to shed light on
the factors that are re
STAT 326
SOLUTION TO HOMEWORK 1
FALL 2011
1. Warehouse simulation study
(a) y = 0 +1 x, where y denotes the average congestion time for all layouts with x vehicles.
(b) From the scatterplot obtained in JMP, the relationship between x and y looks linear,
s
STAT 326
Homework 2
Fall 2011
Show all your work for full credit! Unless noted otherwise, round to the 3rd decimal place.
The four Cs. Carats, Cut, Clarity, and Color determine the price of diamonds. In particular, carat
refers to the weight of a diamond: