Chapter 1
Overview:
Individuals and variables
Categorical variables: pie charts and bar charts
Quantitative variables: histograms and stem plots
Time plots
Individuals
Individuals are objects described by a set of data
E.g. students, dogs, cars, M&M candi
KINGS UNIVERSITY COLLEGE
THE UNIVERSITY OF WESTERN ONTARIO
DEPARTMENT OF STATISTICAL AND ACTUARIAL SCIENCES
STATISTICS 1024B MIDTERM TEST
Saturday, March 1st, 2014, 9:00  11:30 AM
Instructor
D. Bellhouse
L. Murray
S. Kopp
S. Valluri
Section
S001 (Tu/Th)
THE UNIVERSITY OF WESTERN ONTARIO
KINGS UNIVERSITY COLLEGE
DEPARTMENT OF STATISTICAL AND ACTUARIAL SCIENCES
STATISTICS 1024A MIDTERM TEST
Saturday, October 24th, 2015, 6:00 to 8:00 PM
Section
S001 (M/W/F 8:30 am)
S002 (M/W/F 3:30 pm)
S570 (Kings)
Instruct
THE UNIVERSITY OF WESTERN ONTARIO
DEPARTMENT OF STATISTICAL AND ACTUARIAL SCIENCES
KINGS UNIVERSITY COLLEGE
STATISTICS 1024A TEST 2
Saturday, November 12, 2011, 10:00 AM  noon
EXAM CODE 350
INSTRUCTIONS:
This is a closed book test. Table A and part of T
THE UNIVERSITY OF WESTERN ONTARIO
DEPARTMENT OF STATISTICAL AND ACTUARIAL SCIENCES
KINGS UNIVERSITY COLLEGE
STATISTICS 1024A TEST 1
Saturday, October 15, 2011, 10:00 AM  noon
EXAM CODE 967
INSTRUCTIONS:
This is a closed book test. Table A from the text
THE UNIVERSITY OF WESTERN ONTARIO
DEPARTMENT OF STATISTICS AND ACTUARIAL SCIENCES
STATISTICS 1024A TEST 2 (2 hours)
Saturday, November 13th, 2010, 10:00 a.m. 12:00 noon
INSTRUCTIONS:
This is a closed book test
There are 30 multiple choice questions to be
Chapter 4 Solutions
4.1: (a) Explanatory: time spent studying; response: grade. (b) Explore the relationship; there is
no reason to view one or the other as explanatory. (c) Time spent online using Facebook is
explanatory, GPA is the response variable. (d
THE UNIVERSITY OF WESTERN ONTARIO
DEPARTMENT OF STATISTICAL AND ACTUARIAL SCIENCES
KINGS UNIVERSITY COLLEGE
STATISTICS 1024B TEST 2
Friday, March 12th, 2010, 6:00  8:00 PM
EXAM CODE 967
INSTRUCTIONS:
This is a closed book test. Table A from the text and
THE UNIVERSITY OF WESTERN ONTARIO
DEPARTMENT OF STATISTICS AND ACTUARIAL SCIENCES
STATISTICS 1024B TEST 1 (2 hours)
SEE PAGE 11 FOR ANSWER KEYS FOR BOTH TESTS
Saturday, February 5th, 2011 10:00 a.m. 12:00 noon
Section( start time)
S001(M/WF, 11:30)
S002(
KINGS UNIVERSITY COLLEGE
THE UNIVERSITY OF WESTERN ONTARIO
DEPARTMENT OF STATISTICS AND ACTUARIAL SCIENCES
STATISTICS 1024B Practice Midterm (2 hours)
INSTRUCTIONS:
This is a closedbook test.
There are 35 multiple choice questions to be answered using th
Statistics 1024B
Assignment 4
Due March 7, 2014
1. Two baskets are taken on a picnic. The first contains 4 ham and 6 cheese sandwiches; the
second contains 12 ham and 3 cheese. In the confusion of darkness, a basket is picked at
random. If a sandwich is d
Statistics 1024B
Assignment 5
Due March 21, 2014
1. The length in centimeters of newborn babies has standard deviation 5. If we were to take a
sample of 25 newborns to set up a 95% confidence interval for the population mean length,
what would be the marg
Statistics 1024B
Assignment 6
Due April 4, 2014
1. Frustrated passengers, congested streets, time schedules, and air and noise pollution are just
some of the physical and social pressures that lead many urban bus drivers to retire
prematurely with disabil
Stats
STATISTICS: science of learning from data
CHAPTER 1: Picturing Distributions with Graphs
Individuals: objects described by a set of data can be people, but also animals or things
Variable: any characteristic of an individual can take different value
MEAN: average of a set of numbers
MEDIAN:

Midpoint of a distribution
Arrange all observations in order of size
If # of observations, n, is odd, median is centre of observations
If # of observations, n, is even, median is two center observations
QUARTILE
Statistics 1024
Review 2
Ear lengths for females in a population follow a
normal distribution with mean 5.2 centimeters
and standard deviation 0.4. What fraction of ear
lengths in the population are within 1.5
standard deviations of the mean?
(A) 0.8664 (
SS 1024 Final Exam Formula Sheet (Tables A & C are attached)
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Chapter 3
The Normal Distributions
1.
2.
3.
Exploring a Distribution
Always plot your data: make a graph, usually a histogram or a stemplot
Look for the overall pattern (shape, center, spread) and
striking deviations such as outliers
Calculate a numerical
Chapter 4: Scatterplots and Correlation
RESPONSE VARIABLE: measures an outcome of a study (dependent)
EXPLANATORY VARIBALE: explain or influence changes in a response variable
(independent)
REGRESSION ANALYSIS: statistical technique that uses observed dat
Statistics 1024B
Assignment 3
Due February 14, 2014
1. An experiment is carried out to study the possible effects of Vitamin C and Vitamin E on
health. Vitamin C was given in one of three dosages: 0 mg per day, 250 mg per day and 500
mg per day. Vitamin E
Chapter 1 Solutions
1.1: (a) The individuals are the car makes and models. (b) For each individual, the variables
recorded are Vehicle type (categorical), Transmission type (categorical), Number of cylinders
(usually treated as quantitative), City mpg (qu
Chapter 6 Solutions
6.1: (a) This table describes 736 + 450 + 193 + 205 + 144 + 80 = 1808 people. 736 + 450 + 193
= 1379 played video games. (b) The percent of boys earning As and Bs is (736 + 205)/1808 =
0.5205 = 52.05%. We do this for all three grade le
Chapter 8 Solutions
8.1: (a) The population is (all) college students. (b) The sample is the 104 students at the
researchers college who returned the questionnaire.
8.2: The population is all the artifacts discovered at the dig. The sample is those artifa
STATS1024
Jan 17, 2017
Density Curve

Is curve that is
1. Always on or above the horizontal axis, and
2. has area exactly 1 underneath it.
Density curve describes the overall pattern of a distribution. The area under the curve and above
any range of valu
STATS1024
Jan 12, 2017
The Mean X

To find the mean X of a set of observations, add their values and divide by the # of observations.

To calculate the average, or mean, add all values, then divide by the # of individuals. It is the
center of mass.
The
Statistics 1024B
Assignment 1
Due January 17, 2014
1. My daughter works in the research branch of a steel factory. She provided me with
measurements on nonmetallic inclusions in several (more than a thousand) steel samples as
part of an experiment that s
Chapter 3: The Normal Distribution

Sometimes the overall pattern of a LARGE # of observations is so regular that we can
describe it by a smooth curve.
PROPORTIONS: areas under the curve
DENSITY CURVE:

Always on or above horizontal axis
Has area exactl
Statistics 1024B
Assignment 2
Due January 31, 2014
1. For a week (Sunday to Sunday inclusive) in the spring as the ice cream season was
beginning, a store selling soft ice cream cones noted the daily high temperature in degrees
Celsius for the day and the
STATS1024
Jan 5, 2017
Set of data contains info about group of individuals. Info is organized in variables.
Definitions:
Individuals Object described by set of data. Can be people but also may be animals or things (Students,
M&Ms dogs)
Variable Any charac