Tutorial 3
29th/ 31st Jan 2014
Question 1:
A survey by Gallup asked a random
sample of American adults about their
soda consumptions. Let X represent the
number of glasses of soda consumed on a
typica
STAT 202, Fall 2014
Assignment 1
Due: Wed, Oct 1st 2014, by 5pm
First Name:
Last Name:
Student Number:
Section Number:
001
002
Acknowledgments:
Instructions:
Fill in the top part of this title pa
Lecture 10
29th Sept 2014
Potential Questions of Interest?
Recall the rabbit experiment
What if we want to know the probability
that we select either a brown OR a
mottled rabbit?
We want to know the p
Lecture 7
22nd Sept 2014
Examining Relationships
Between Variables
Problem: Do people who attend a diabetes
control class manage their blood glucose levels
better than those that received individual
i
Lecture 5
17th Sept 2014
Example 2.6.7:
Girls Height and Weight: The heights (in cm) and
weights (in kg) of 13 girls were measured at age
two.
At age two the average height was 86.6 cm and
the SD was
Lecture 6
19th Sept 2014
Boxplots (Chapter 2, pg 45)
We will consider two types of boxplots:
1.
Unmodified Boxplot
2.
Modified Boxplot
Unmodified Boxplot
Min
Q1
Max
Q2
IQR= Q3 Q1
Range= Max - Min
Q3
I
Lecture 9
25th Jan 2013
Example:
A study of consumer smoking habits
include 200 married people (54 of whom
smoke), 100 divorced people (38 of whom
smoke), and 50 adults who never married
(11 of whom
Lecture 2
Jan 9th
Review:
Analysis Techniques
1.Graphical techniques (visual
representation of data)
Example:
Consider the following data:
1,2,2,3,3,3,4,4,4,4,5,5,5,6,6,7
One graphical technique is t
Lecture 8
23rd Jan 2013
Mutually Exclusive
Two events are mutually exclusive
(ME) if they have no outcomes in
common or can never occur
together.
Is the event A person wears glasses
mutually exclusi
Lecture 13
4th Feb 2013
Example
The number of celery seeds that germinate
in a packet of 5 seeds has the following
cdf:
X
0
1
2
3
4
5
F(x)
0.1
0.2
0.3
0.5
0.8
1
Questions follow.
What is the probabi
Tutorial 1
16th Jan 2013
Question 1:
A student survey is performed where
information is collected on students in an
introductory statistics class at one university.
Information is collected on the
Tutorial 3
30th Jan 2013
Question 1:
Suppose that 37% of the students in an
introductory stats course are athletes.
When asked to pick which award they
would prefer to win, 5% of the athletes
chose an
2013-02-02
Tutorial 3
30th Jan 2013
Ques%on 1:
Suppose that 37% of the students in an
introductory stats course are athletes. When
asked to pick which award they wo
Lecture 3
th
Jan 11 2012
Order Statistics (Section 2.4)
Recall we represented the Median by
Q2 and said that it is called the Second
Quartile.
The Median actually represents one of
3 quartiles that we
Lecture 12
1st Feb 2013
Wording
If we say that our answer is at most 4, then
our answer can
A)Include 4
B)Not include 4
Notation:
If we say that our answer is at least 4,
then our answer can
A)Includ
Tutorial 3
30th Jan 2013
Question 1:
Suppose that 37% of the students in an
introductory stats course are athletes.
When asked to pick which award they
would prefer to win, 5% of the athletes
chose
Tut 2
23rd Jan 2013
Question 1:
For events A and B, we have P(A)=0.4,
P(B)=0.3, and = 0.1. Find:
a) ()
b) ( )
c) Are events A and B disjoint?
d) Are events A and B independent?
Question 2: If Pr(E )
Lecture 7
21st Jan 2013
Classical
The probability of some event/ outcome
is:
Number of ways the event can occur
Number of outcomes in S
Assumes that all points in S are
equally likely
Probability
Let
Lecture 6
18th Jan 2013
Stem and Leaf Plots
Recall that when we draw a boxplot or a
histogram the individual data values are lost.
The Stem and Leaf plot attempts to fix this
issue.
The plot consists
STAT 202
Chapter (4)
Chapter 4
Regression
Chapter objectives
The least-squares regression line.
Finding the least-squares regression line.
The coefficient of determination, r 2
Outliers and influentia
Stats 202
Chapter 14
Chapter 14
Introduction to inference
Chapter objectives
Uncertainty and confidence.
Confidence intervals.
Confidence interval for a Normal population mean ( known).
Significance t
STAT 202
Chapter (17)
Chapter 17
Inference about a Population Mean ( unknown)
Chapter objectives
Conditions for inference about a mean.
The t distributions.
The onesample t confidence interval.
Th
STAT 202
Chapter 12(a)
2
Discrete Probability Distribution
Chapter 12 Objectives
The Binomial setting and Binomial distributions.
Binomial mean and standard deviation.
The Normal approximation to B