Chapter 3 Physical Layer
P r es id en t Lee Coon e h a s a s k ed you to con tin u e p la n n in g for a n in tegr a ted corp ora te NDAS
n etwor k . Ult im a tely, th is n etwor k will lin k a ll th e offices with th e Ta m p a h ea d office a n d b ecom
Chapter 2 Application Layer
B ob J on es , m a n a ger of Sa les a n d Ma r k etin g, r ecen tly r ea d a n a r ticle a b ou t th e In ter n et in
B u s in e s s W e e k a n d h a s ra is ed th e is s u e of th e In ter n et with Pr es id en t Lee Coon e.
113
EXERCISES
Three terminals (Tr, Tz, T3) are to be connected
to three computers (Ct, Cz, C:) so that Ti is connected to Cr, Tz to C2, and T: to C:. All are in
different cities. T1 and Cl are 1,500 miles apart, as
are T2 and C2, and T3 and C3. The points
ISIT105
Tutorial week 5
Describe three types of guided media.
1.
2.
3.
Describe how data could be transmitted using amplitude modulation.
Is the bit rate the same as the symbol rate? Explain.
4. Explain how pulse code modulation (PCM) works.
Mini-cases
I.
SAMPLE EXAM
FOR REVISION PURPOSE ONLY
Family Name
.
First Name
.
Student Number.
Table Number
.
ARTS017
SAMPLE EXAM
SAMPLE
FOR REVISION PURPOSE ONLY
FINAL EXAMINATION
Islamic Culture
Time Allowed: 2 Hours 15 Minutes
Total Number of Questions: 11
Total Num
TUTORIAL 5 (CHAPTER 5-6)
COMM121/STAT 131
1.
Consider the following probability distribution function. Compute the mean
and standard deviation of x.
x
P(x)
0
0.05
1
0.16
2
0.19
3
0.24
4
0.18
5
0.11
6
0.05
7
0.02
2.
Suppose you know that the number of comp
STAT 015 Introduction to Statistics
Autumn 2012
Tutorial 1
Problem Solving
1.6 Page 40
For each of the following variables, determine whether the variable is categorical or
numerical. If the variable is numerical, determine whether the variable is discret
FacultyofComputerScienceandEngineering
UndergraduateProgram
STAT 015 Introduction to Statistics
Autumn 2012
Practice Questions #1
Name:
Student Number
General Instruction:
1. Answer ALL questions
2. Show solution/work when necessary
Example:
T
STAT 015 Introduction to Statistics
Autumn 2012
PRACTICE QUESTIONS FOR MIDSESSION ASSESSMENT
1. The following information is collected from students upon exiting the campus
bookstore during the first week of classes.
a. Expected time until return
b. Miles
STAT 015 Introduction to Statistics
Autumn 2012
Lecture 1
Why Statistics?
o Helps you make better sense of the world by transforming numbers into useful
information.
o Helps you make better business decisions by letting you know the risks
associated with
ISIT 105
Tutorial 2
1. Acompanys telephone exchange (PBX or IP-PBX) digitizes telephone channels at 8000
samples per second, using 8 bits for quantization. The telephone exchange transmits
simultaneously on 24 telephone channels over the same communicatio
EXAM I (Sun Mar 10) [Bring Calculator (no borrowing) &
questions not allowed during exam]
Note: any PAGE nos (or exercise nos) refer to 9th edn of textbook which is available on
MYUOWD as scanned docs [Any version of text book is OK to use and study]
Week
STAT 015 Introduction to Statistics
Autumn 2012
Tutorial 2
PROBLEM SOLVING
Question 1 (2.15)
The GMAT scores from a sample of 50 applicants to an MBA program indicate that none of
the applicants scored below 450. A frequency distribution was formed by cho
Exam I guide [March 10 Sun 11:30]
NO QUESTIONS allowed on exam [when in doubt, just make any suitable
assumption and solve]
Bring a calculator please (Not graphical): No borrowing
Prepare by studying all sections from the Homework sheet and re-doing all
e
STAT 015 Introduction to Statistics
Fall 2012
Lecture 8
4.2
DECISION TREES
Question 1
Two balls are drawn, without replacement, from a bag containing 4 red balls and 5 white
balls.
a. Construct a tree diagram.
b.
c.
d.
e.
What is the probability that two
Tutorial 2-3
CSCI 103: Algorithm and Problem Solving
Prof. Mohamed Watfa
1- For every 27 word sequence in the US constitution, at least two words will start will the same
letter.
2- In UOWD, there will be two students who have the same first and last init
Chapter 8
TCP/IP
The Need for a
Protocol Architecture
Protocol
A set of rules governing the exchange of
data between two entities
Key elements:
Syntax
Includes such things as data format and signal
levels
Semantics
Includes control information for coordin
2.3
STAT 015 Introduction to Statistics
Autumn 2012
Lecture 3
ORGANIZING NUMERICAL DATA
1. The Frequency Distribution
A frequency distribution summarizes numerical values by tallying them into a set of
numerically ordered classes.
Classes are groups that
STAT 015 Introduction to Statistics
Autumn 2012
Lecture 4
3.1
CENTRAL TENDENCY
The central tendency is the extent to which the data values group around a typical or central
value.
The three measure of central tendency are:
Mean: the average value
Median
Assignment 1
CSCI 103: Algorithm and Problem Solving
Prof. Mohamed Watfa
1. 4 of you friends are in a meeting and have different heights. Their average height is 74
inches, and the difference-in height amongst the first three friends is two inches. The
3r
STAT 015 Introduction to Statistics
Autumn 2012
Lecture 5
Mean: Continued.
Question 1
The exam marks for a particular Statistics class of 100 students are given by the following
frequency distribution:
Marks
Frequency
30, but less than 40
5
40, but less t