MAT 2379A
Midterm Examination (with Solutions)
October 31, 2012
Time: 80 minutes
Professor Raluca Balan
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Student Number:
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This is a closed book examination. A formula s
MAT 2379, Introduction to Biostatistics
Assignment 5
Due date: Monday December 07, 2015 at 3:00 p.m.
Total = 100 marks
Part I (70 marks) Solve the following problems from the textbook using a Faculty-standard calculator:
11.1,
12.3,
12.6,
13.3,
16.5
Remar
MAT 2379, Introduction to Biostatistics, Lecture Notes for Chapter 6
1
MAT 2379, Introduction to Biostatistics
Chapter 6. Discrete Random Variables
6.1. Denition
The term random is not easy to dene mathematically but is an important part of human
activiti
University of Ottawa
MAT 2379 3X Midterm I, Summer 2015
May 28, 2015
Time: 80 minutes
Professor: Termeh Kousha
Student Number:
Family Name :
First Name:
This is a closed book examination. Only basic calculators are allowed.
Record your answer to each of t
Midterm examination for MAT 2379 3X (Spring 2013)
Introduction to biostatistics
Professor: Gilles Lamothe
Time: 80 minutes
Name:
Student Number:
Calculators are permitted. It is a closed book exam.
A (double sided) sheet is permitted.
There are 2 short an
MAT 2379 3X (Spring 2014)
Assignment 2 (solutions)
Solve the following ve exercises using a TI-30, TI-34, Casio FX-260 or Casio
FX-300 calculator (do not use R).
[6]
(1) Problem 5.5 from the textbook. Let Ai be the event that variety b1 is
used in the ith
MAT 2379, Introduction to biostatistics, Assignment 4
1
MAT 2379, Introduction to biostatistics
Solution to Assignment 4
Due date: Friday November 15, 2013
T otal = 100 marks
Problem 1. (a) The sample mean is
x=
1
(4.2 + 4.6 + . . . + 5.8) = 4.68
12
The s
Solutions and Marking Scheme for Midterm I
MAT 2379 3X Midterm I, Summer 2015
1. (1 points) Consider two events A and B such that P (A) = 0.7, P (B) =
0.2 and P (A B) = 0.3. Are there any inconsistencies in the assignment of these probabilities? If not, c
MAT 2379, Introduction to biostatistics, Final Exam Study Guide
1
There will be 25 questions in the nal. The formula sheet will be given
to you, together with normal, t and 2 tables.
This is not a nal version of this le!
Resources:
Final Exam Formula She
University of Ottawa
MAT 2379 3X Midterm II, Summer 2015
July 7th, 2015
Time: 80 minutes
Professor: Termeh Kousha
Student Number:
Family Name :
First Name:
This is a closed book examination. Only basic calculators are allowed.
Record your answer to each o
MAT 2379A
Midterm Examination (with Solutions)
October 22, 2014
Time: 80 minutes
Professor Raluca Balan
Student Number:
Family Name:
First Name:
This is a closed book examination. A formula sheet and some statistical
tables are included with the exam. Onl
MAT 2379 - Introduction to Biostatistics
ProbabilityI
Professor: Termeh Kousha
Summer 2015
1
1
Operations on events
A random experiment is an experiment or a process for which the outcome cannot be predicted with certainty.
The sample space (denoted S) of
MAT 2379 - Introduction to Biostatistics
Probability II
Professor: Termeh Kousha
Summer 2015
1
1
Conditional Probability
Consider again the example with a group of 100 German men of which
70 have blond hair, 77 have blue eyes and 55 have blond hair and bl
MAT 2379 - Introduction to Biostatistics
Interpreting Probabilities
Professor: Termeh Kousha
Summer 2015
1
1
Random Experiment
Statistics can refer to the mathematical techniques used to analyze data.
Usually the data comes from a random experiment.
Denit
MAT 2379 - Introduction to Biostatistics
Condence Interval
Professor: Termeh Kousha
Summer 2015
1
1
Condence Intervals
The goal of the statistical inference is to draw conclusions about an unknown
parameter which describes a feature of the population (giv
MAT 2379 - Introduction to Biostatistics
Sampling Distributions and Point Estimation
Professor: Termeh Kousha
Summer 2015
1
1
Point estimation of parameters
Sampling Terminology: In practice we repeat an experiment n times.
Examples:
- Select n subjects a
MAT 2379 - Introduction to Biostatistics
Assessing Normality
Professor: Termeh Kousha
Summer 2015
1
To check if the data comes from a normal distribution, we should rst
look at the histogram and see if it has a bell-shaped form, and if resembles
the plot
MAT 2379 - Introduction to Biostatistics
Descriptive Statistics
Professor: Termeh Kousha
Summer 2015
1
1
Random Sampling and Data Description
We will start by examining the question:
What is a statistical problem?
For example, a researcher is examining a
MAT 2379, Introduction to Biostatistics, Solution to old sample mid-term
1
1.
1
P r[at least one child is right handed] = 1P [N ochildisrighthanded] = 1
2
4
=
2. Let A = contracting disease A and B = contracting disease B. We need to nd
P rcfw_A and B|A o
MAT 2379 - Introduction to Biostatistics
Random Variables
Professor: Termeh Kousha
Summer 2015
1
1
Random Variables
In probability and statistics, a random variable, aleatory variable or stochastic variable is a variable whose value is subject
to variatio
MAT 2379 3X (Spring 2015) Assignment 1
Professor: Termeh Kousha
Deadline: Friday, May 15, 2015 3pm (math department drop
boxes)
Late assignments will NOT be accepted; nor will unstapled assignments.
Professors in the math department will not lend you a st
Course timetable and suggested exercises:
Throughout the semester, there will be weekly updates. You should check
this page regularly. All the exercises are from Expect the Unexpected, By
Gilles Lamothe and Raluca Balan. Here is the link to the bank of qu
MAT 2379 3X
Midterm Examination - Solution
Part I - Multiple Choice Questions
Question 1 (1 point) Consider the random variable X with the following
probability mass function.
1
2
0.1 0.1
x
f (x) = P (X = x)
4
6
8
0.3 0.4 0.1
Compute the expected value of
MAT 2379 3X (Spring 2015)
Assignment 1 - Solutions
[4]
1. Let A and B be the events that the white rate is infected by a virus A
and by a virus B, respectively. We know that P (A) = 0.75, P (B) = 0.7
and P (A B) = 0.5.
(a) The probability that a randomly
Midterm Solutions for MAT 2379 (Fall 2017)
Introduction to biostatistics
Question
1
2
3
Answer
E
B
D
Question
4
5
6
Answer
F
D
A
Multiple Choice Questions
[1]
1. Police report that 97.12% of drivers stopped on suspicion of drunk
driving are given a breath
Midterm Solutions for MAT 2379 (Fall 2017)
Introduction to biostatistics
Question
1
2
3
Answer
B
A
C
Question
4
5
6
Answer
E
A
A
Multiple Choice Questions
[1]
1. Here are results from a group of 20 students chosen at random for a
test in biostatistics:
85
MAT 2379, Introduction to biostatistics, Assignment 2
1
MAT 2379, Introduction to biostatistics
Solution to Assignment 2
(Total = 32 points)
Problem 3.18 Let A be the event that the child is diagnosed with autism before the age of six and B the event
that
Practice Midterm for MAT 2379 (Fall 2017)
Introduction to biostatistics
Time: 80 minutes
Student Number:
Name:
You must sign below.
Cellular phones, unauthorized electronic devices or course notes are not allowed during this exam. Phones and devices must
MAT 2379 - Introduction to Biostatistics
Chapter 4 and 5: Discrete and continuous
Random Variables
Professor: Termeh Kousha
Fall 2017
1
1
Random Variables
In probability and statistics, a random variable, aleatory variable or stochastic variable is a vari