§ZFAT28OO Midterm < Wlfvlar 5, 2910 > _ 2
1. (8 marks) If :r is a binomial random variable with parameters n and 7T,
72
(a) Evaluate Z 51:2 7r? (1 ~7r)x [Note: this summation is not the formula
:6
STAT2800U: Lecture 2
CHAPTER 1: SAMPLING AND DESCRIPTIVE
STATISTICS
Graphical Summaries (Section 1.3, page 25)
Stem-and-Leaf Plots
Most of us already know what a histogram looks like:
Although a histo
STAT2800U: Lecture 6
CHAPTER 2: PROBABILITY
Random Variables Contd (Section 2.4, page 88)
Recall: Last class we started setting up discrete random
variables and we also worked with continuous random v
STAT2800U: Lecture 4
CHAPTER 2: PROBABILITY
Counting Methods (Section 2.2, page 62)
Permutations:
In how many ways can you order the letters A, B, C?
Five lifeguards are available for duty one Saturda
STAT2800: Lecture 9
CHAPTER 4: COMMONLY USED DISTRIBUTIONS
The Normal Distribution- Contd (Section 4.5, page 241)
Recall: Last class we focused on applications with the use of the
Normal Distribution.
STAT2800: Lecture 10
CHAPTER 4: COMMONLY USED DISTRIBUTIONS
The Exponential Distribution Contd (Section 4.7, page
262)
Recall: Last class we introduced the Exponential distribution:
Definition
A varia
STAT2800: Lecture 11
CHAPTER 4: COMMONLY USED DISTRIBUTIONS
The Central Limit Theorem (Section 4.11, page 289)
The Central Limit Theorem is by far the most important result in
statistics. Many commonl
0
STAT 2800U
MIDTERM: MARCH 9, 2016
First Name
Last Name
Student Number
INSTRUCTIONS:
Use a pen to fill in the front page. All midterm answers
should be written in ink. No white-out is allowed. If a
STAT2800: Lecture 11
CHAPTER 4: COMMONLY USED DISTRIBUTIONS
The Central Limit Theorem (Section 4.11, page 289)
The Central Limit Theorem is by far the most important result in
statistics. Many commonl
Question #1: (25 marks) Week 9 Lectures 1 and 2
In the kinesiology lab, eight male volunteers over the age of fifty were recruited for a study of blood pressure. For these
eight men, the number of hou
STAT2800U: Lecture 8
CHAPTER 4: COMMONLY USED DISTRIBUTIONS
The Normal Distribution (Section 4.5, page 241)
Definition
A continuous variable x is said to have a normal distribution with
parameters and
STAT2800U: Lecture 7
CHAPTER 4: COMMONLY USED DISTRIBUTIONS
The Binomial Distribution Contd (Section 4.2, page
203)
THE BINOMIAL DISTRIBUTION (discrete)
Recall: p(x) = proportion of batches with x Ss
STAT2800U: Lecture 5
CHAPTER 2: PROBABILITY
Random Variables (Section 2.4, page 88)
Definition:
A numerical characteristic whose value depends on the outcome of a
chance experiment is called a random
Midterm Formula Sheet for STAT 2800
Lognormal Distribution:
Discrete Distribution:
Mean: x = x p( x)
Variance: = ( x ) p ( x)
Continuous Distribution:
Mean: x = x f ( x)dx
2
x
2
where
x
(x ) f (x)dx
2
99
February 9 2009, Lecture 11:
MIDTERM REVIEW
1. Chapter 1 is pretty straight forward. Please make sure you
understand your simple summary statistics of a raw data set
(i.e., x, s 2 , ~ , quartiles,
STAT 2800U
MIDTERM: MARCH 1, 2006
First Name
Last Name
Student Number
Signature of Student
INSTRUCTIONS:
Use a pen to fill in the front page. All midterm answers
should be written in ink. No white-ou
SitisziCS..431?"Prmabg. .. QC??? 2003........... .. .. .. . 2
1. (8 marks) If x is & binomiai random variabie with parameters 2% and
Show that the mean of the random variable 1: is {6 marks
1
1. (12 marks) The following scores represent a nurses assessment (X) and a physicians
assessment (Y) of the condition of 10 patients at time of admission to a trauma center.
X: 18
13
18
15
10
12
8
4
STAT 2800U
MIDTERM: FEBRUARY 14, 2008
First Name
Last Name
Student Number
Signature of Student
TAs Name
INSTRUCTIONS:
Use a pen to fill in the front page. All midterm answers
should be written in ink
STAT2800U: Lecture 1
CHAPTER 1: SAMPLING AND DESCRIPTIVE
STATISTICS
Question: What is a statistic?
Answer: Any numerical summary measure based on data from a
sample; contrasts with a parameter which i
STAT2800U: Lecture 3
CHAPTER 2: PROBABILITY
A chance experiment, also called a random experiment, is simply
an activity or situation whose outcomes, to some degree, depend on
chance. To decide whether
STAT 2800U
MIDTERM: FEBRUARY 15, 2007
First Name
Last Name
Student Number
Signature of Student
TAs Name
INSTRUCTIONS:
Use a pen to fill in the front page. All midterm answers
should be written in ink