Coeff of Var
IQR range = Q3-Q1
IQR Lp=(n+1)P/100
Sample Corr Coeff
Sample Covariance Cov (xy) = s(xy)
Pop
coeff of determ is
r2=coef of Corr
Population variance
Sample SD
Probability distribution alwa
RESEARCH SCHOOL OF FINANCE, ACTUARIAL STUDIES
AND APPLIED STATISTICS
First Semester Mid-Semester Examination (2013) Solutions
INTRODUCTORY STATISTICS FOR BUSINESS AND
FINANCE
(STAT7055)
Writing period
RESEARCH SCHOOL OF FINANCE, ACTUARIAL STUDIES
AND APPLIED STATISTICS
First Semester Final Examination (2013)
INTRODUCTORY STATISTICS FOR BUSINESS AND
FINANCE
(STAT7055)
Writing period: 3 hours duratio
STUDENT NUMBER:
RESEARCH SCHOOL OF FINANCE, ACTUARIAL STUDIES
AND APPLIED STATISTICS
Second Semester Mid-Semester Examination (2015) Solutions
INTRODUCTORY STATISTICS FOR BUSINESS AND
FINANCE
(STAT705
RESEARCH SCHOOL OF FINANCE, ACTUARIAL STUDIES
AND APPLIED STATISTICS
First Semester Mid-Semester Examination (2013) Solutions
INTRODUCTORY STATISTICS FOR BUSINESS AND
FINANCE
(STAT7055)
Writing period
STAT7055 Semester 1 2014
Week 12 Tutorial Questions/Solutions
Question 1
(Exercise 15.26 Keller 9th Edition)
Conduct a test to determine whether the two classifications R and C are independent, using
STUDENT NUMBER:
RESEARCH SCHOOL OF FINANCE, ACTUARIAL STUDIES
AND APPLIED STATISTICS
Second Semester Mid-Semester Examination (2015) Solutions
INTRODUCTORY STATISTICS FOR BUSINESS AND
FINANCE
(STAT705
STAT7055 Semester 1 2014
Week 8 Tutorial Questions/Solutions
Question 1
In investigating the performance of a new model of copying machine, a company recorded
the amount of time required to fix breakd
RESEARCH SCHOOL OF FINANCE, ACTUARIAL STUDIES
AND APPLIED STATISTICS
First Semester Mid-Semester Examination (2013)
INTRODUCTORY STATISTICS FOR BUSINESS AND
FINANCE
(STAT7055)
Writing period: 1 1/2 ho
STAT7055 Semester 2 2016
Week 3 Tutorial Questions
100
1. The average score for a class of 30 students was 75. The 20 male students in the class
averaged 70. The boxplots for the scores for the male a
STUDENT NUMBER:
RESEARCH SCHOOL OF FINANCE, ACTUARIAL STUDIES
AND APPLIED STATISTICS
First Semester Mid-Semester Examination (2014) Solutions
INTRODUCTORY STATISTICS FOR BUSINESS AND
FINANCE
(STAT7055
STAT7055 Semester 2 2015
Week 2 Tutorial Solutions
1. Data was collected on 105 homes in Canberra in 2003. For each house, the following
information was collected: the estimated price of the house (in
STAT7055 Semester 1 2014
Week 2 Tutorial Questions/Solutions
Question 1
Data was collected on 105 homes in Canberra in 2003. For each house, the following
information was collected: the estimated pric
STAT7055
Tutorial Week 3 Solutions
PART I
1. The following table lists the joint probabilities of achieving grades of A and not
achieving As in two MBA courses
Achieve a grade of A Does not achieve a
STAT7055 Semester 1 2014
Week 5 Tutorial Questions/Solutions
Question 1
The amount of time it takes for a student to complete a statistics quiz is uniformly
distributed between 30 and 60 minutes. One
STAT7055
LECTURE 5
Sampling Distributions
February 17, 2016
STAT7055 - Lecture 5
February 17, 2016
1 / 61
Introduction
Statistical Inference
I
Statistical inference: Determining the behaviour
of a pop
STAT7055 Semester 2 2015
Week 4 Tutorial Solutions
1. Suppose the random variable X has the following probability distribution:
x
0
1
2
p(x)
0.6
0.3
0.1
Calculate the following:
(a) E(X)
Solution:
(x
STAT7055
LECTURE 5
Sampling Distributions
March 25, 2015
STAT7055 - Lecture 5
March 25, 2015
1 / 62
Introduction
Statistical Inference
I
Statistical inference: Determining the behaviour
of a populatio
STAT7055 Semester 1 2017
Week 5 Tutorial Questions
1. The amount of time it takes for a student to complete a statistics quiz is uniformly
distributed between 30 and 60 minutes. One student is selecte
STAT7055 Semester 2 2017
Week 9 Tutorial Questions
1. (Keller 10e Ex 12.94) In some states, the law requires drivers to turn on their headlights
when driving in the rain. A highway patrol officer beli
STAT7055
LECTURE 4
Continuous Probability Distributions
March 25, 2015
STAT7055 - Lecture 4
March 25, 2015
1 / 71
Introduction
Discrete Random Variable
I
I
I
A discrete random variable takes on a coun
STAT7055 Semester 1 2017
Week 3 Tutorial Questions
100
1. The average score for a class of 30 students was 75. The 20 male students in the class
averaged 70. The boxplots for the scores for the male a
STAT7055
LECTURE 1
Introduction and Descriptive Statistics
January 15, 2015
STAT7055 - Lecture 1
January 15, 2015
1 / 75
Introduction
Roadmap for Course
I
First half of semester - learn some fundament
STAT7055 Semester 1 2017
Week 4 Tutorial Questions
1. Suppose the random variable X has the following probability distribution:
x
0
1
2
p(x)
0.6
0.3
0.1
Calculate the following (do it manually first,
STAT7055 Semester 1 2017
Week 3 Tutorial Solutions
100
1. The average score for a class of 30 students was 75. The 20 male students in the class
averaged 70. The boxplots for the scores for the male a
STAT7055 Semester 1 2017
Week 4 Tutorial Solutions
1. Suppose the random variable X has the following probability distribution:
x
0
1
2
p(x)
0.6
0.3
0.1
Calculate the following (do it manually first,
STAT7055 Semester 2 2017
Week 5 Tutorial Solutions
1. The amount of time it takes for a student to complete a statistics quiz is uniformly
distributed between 30 and 60 minutes. One student is selecte
STAT7055
LECTURE 3
Random Variables and Discrete
Probability Distributions
January 15, 2015
STAT7055 - Lecture 3
January 15, 2015
1 / 63
Random Variables
Random Variable
I
I
Suppose we flip a fair coi
STAT7055
LECTURE 2
Probability
January 15, 2015
STAT7055 - Lecture 2
January 15, 2015
1 / 64
Introduction
Definitions
Random Experiment
I
I
A random experiment is a process that results in
one of seve