Students Name [print]
Student Number
Mathematics 2156B Second Midterm Exam
7:009:30pm
March 11, 2011
Instructions: Print your name and your student number on the Scantron card. Sign the
Scantron card,
12
Chapter 1
What Is Statistics?
c Is the amount of time spent online using the Internet approximately normally distributed?
Why?
1.11
The following results on summations will help us in calculating t
166
Chapter 4
Continuous Variables and Their Probability Distributions
Exercises
4.1
Let Y be a random variable with p(y) given in the table below.
y
1
2
3
4
p(y)
.4
.3
.2
.1
a
Give the distribution f
PRACTICE EXERCISES FOR WEEK 1
CHAPTER 1
1.11, 1.12 (Answer: 1.211), 1.13(a), 1.15(a), 1.17: Only for the data in Exercises 1.2 and 1.4
TEXT SECTION 2.3
2.1, 2.3, 2.4, 2.5, 2.7
TEXT SECTION 2.4
2.9, 2.
PRACTICE EXERCISES FOR WEEK 6
TEXT SECTION 4.6
4.81, 4.89, 4.91, 4.93, 4.95, 4.97, 4.99(a): Calculate your answer using the Poisson probability
function, 4.103, 4.105(a), 4.109, 4.111
TEXT SECTION 4.7
STAT 2655 Assignment 3
Due: Wednesday, November 8, 2017 by 3 pm
QUESTION 1
A discrete random variable Y has a cumulative distribution function given by
0
0.15
0.35
() =
0.65
0.90
cfw_ 1
<0
0<1
1<2
2<3
Exam P Distributions and Other Useful Formulas: Page 1
Distribution
Name
Binomial
(Bernoulli if
)
Parameters
and Domains
Hypergeometric
sample size
population
size
subgroup
size
Poisson
Geometric
(num
Math 2156 Assignment 1: due at beginning of class on Wednesday, January 12
1. (a) Use the Euclidean algorithm (showing all steps) to nd ( 156, 91 ). Then express
( 156, 91 ) as a linear combination of
Students Name [print]
Student Number
Mathematics 2156b First Midterm Exam
7:00-9:30pm
February 4, 2011
Instructions: Print your name and your student number on the Scantron card. Sign the
Scantron car
Math 2156 Assignment 12: due at beginning of class on Wednesday, April 6
For a graph G, a B EG is called a cut-set for G if the number of components of the subgraph
ofG that is induced by EG B is grea