11
BINOMIAL DISTRIBUTION
Examples:
1. Five terminals on an on-line computer system are attached to a communication line to the central computer
system. The probability that any terminal is ready to
tr
Journal of Economic Cooperation and Development, 34, 3 (2013), 61-100
The Role of Political Stability on Economic Performance:
The Case of Bangladesh
Moin Uddin Ahmed 1 and Mohammad Habibullah Pulok 2
NATIONAL UNIVERSITY
Syllabus
Department of Statistics
Four Year B.Sc Honours Course
Effective from the
Session : 20092010
Edited with the trial version of
Foxit Advanced PDF Editor
To remove this noti
Types of data: Statistics
Students need know that data that they collect can be one of several types. It is important to know
what type it is because it helps decide how best to collect it and appropr
1
Sufficient Statistics
When the population is modeled by a probability distribution or probability
density function that depends on a parameter , we collect a random sample
to make inferences about .
VARIABLES
Topic #3
Variables and the Unit of Analysis
Variables are characteristics of the things that we are
studying.
These things are commonly called cases or units.
A case study focuses on a si
Module 2: Types of Data
This module describes the types of data typically
encountered in public health applications.
Recognizing and understanding the different data
types is an important component of
Types of Variables
AP Statistics
06-07
Dobson
Review of Terms
Individual: The objects described by a
set of data, individuals may be people,
animals or things
Ex: Students in an AP Statistics class
Va
Presentation 2
Summarizing One or Two Categorical Variables
&
Relationships Between Categorical Variables
Types of Variables
Categorical Possible values define group or categories,
not necessarily in
ANOVA in R
1-Way ANOVA
Were going to use a data set called InsectSprays. 6 different insect sprays (1 Independent
Variable with 6 levels) were tested to see if there was a difference in the number of
Class Practice on Hypothesis Testing #4 Homework Problems
1. The college bookstore tells prospective students that the average cost of its
textbooks is $52 with a standard deviation of $4.50. A group
www.ck12.org
Chapter 12. Hypothesis Testing
C HAPTER
12
Hypothesis Testing
Chapter Outline
12.1
H YPOTHESIS T ESTING
12.2
C RITICAL VALUES
12.3
O NE -S AMPLE T T EST
247
12.1. Hypothesis Testing
www.c
Hypothesis Testing Examples
1.
Suppose we would like to determine if the typical amount spent per customer
for dinner at a new restaurant in town is more than $20.00. A sample of 49
customers over a t
One-way ANOVA
We are often interested in determining whether the means from more than two
populations or groups are equal or not. To test whether the difference in means
is statistically significant w
Introduction to statistics and data
Types of Variables: Overview
Categorical
Quantitative
Descriptive Statistics
Categorical Variables
Dichotomous (binary) two levels
binary
nominal
ordinal
discrete
c
Chapter 4
Linear Estimation Theory
Virtually all branches of science, engineering, and social science for data analysis, system control subject to random disturbances or for decision making based on
R Lab Session : Part 2
To see a review of how to start R, look at the beginning of Lab1 http:/www-stat.stanford.edu/ epurdom/RLab.htm
Probability Calculations
The following examples demonstrate how to
Hypergeometric Distribution
Suppose an urn contains w white balls and b black balls
for a total of T = w + b balls (the population size)
and that a sample of size n is drawn without replacement.
Let X
12
HYPERGEOMETRIC DISTRIBUTION
Examples:
1. Five cards are chosen from a well shuffled deck.
X = the number of diamonds selected.
2. An audio amplifier contains six transistors. It has been
ascertaine
Page R10.1
R TUTORIAL, #10:
BINOMIAL DISTRIBUTIONS
The (>) symbol indicates something that you will type in.
A bullet () indicates what the R program should output (and other comments).
BINOMIAL COEFF
13
POISSON DISTRIBUTION
Examples
1. You have observed that the number of hits to your web
site occur at a rate of 2 a day.
Let X be be the number of hits in a day
2. You observe that the number of tel
Will Murrays Probability, XIV. Negative Binomial Distribution 1
XIV. Negative Binomial Distribution
Negative Binomial Distribution
The
negative
binomial
distribution
describes a sequence of trials, ea
King Abdul Aziz University
Department of Statistics
Assignment 6
Stat 271
Term 1, 2013
Name:_
ID:_
Section:_
Marks Obtained:_
Please attach the output using megastat along with the assignment
The due
Hyper Geometric
1. A sample of 3 items is selected at random from a box containing 20 items of
which 4 are defective. Find the expected number of defective items in the
sample.
2. Suppose that a batch
Counting
1. (a) How many different 7-place license plates are possible if the first 2 places are for
letters and the other 5 for numbers?
(b) Repeat part (a) under the assumption that no letter or num
Stem-and-Leaf Display
A stem-and-leaf display resembles a histogram which is useful for
quantitative data sets. The purpose of a stem-and-leaf display is
similar to a histogram.
A stem-and-leaf displa
Joint Probability Distributions
1. Suppose that 2 balls are randomly selected from a box containing 3 red, 4 white, and
5 blue balls. If we let X and Y denote, respectively, the number of red and whit
4.44.5 Geometric and Negative Binomial
Distributions
Prof. Tesler
Math 186
February 5, 2014
Prof. Tesler
4.4-4.5 Geometric & Negative Binomial DistributionsMath 186 / February 5, 2014
1/8
Geometric Di