VARIABLES AND DISTRIBUTIONS
1
Date File 1
Chapter One
1) Determine whether the evaluated group is a population or a sample
a)
Based on a randomly selected group of 500 patients with high cholesterol,
it was found that 67% have heart disease. Is this a pop
DATA VISUALLY AND THROUGH NUMBERS
1
Data File 2
Chapter Three (Show all your work)
1) A teacher asked each of her students how many novels they had read in the previous six
months. The results are shown below.
0
2
1
7
0
1
7
2
1
2
5
2
6
4
1
4
5
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STAT 3600-111: Statistics and Probability I
Summer Semester, 2017
Time:
M T W R F 11:3001:00 pm
Place:
Parker Hall 326
Instructor:
Ngartelbaye Guerngar
Office:
Parker Hall 136 D
E-Mail:
[email protected]
Office Hours:
TWR immediately after class 01:0002:
STAT 3600 Summer 2017 Exam 1
Instructor: N gartelbaye Guerngar
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Instructions
Read each problem very carefully. Show all your work. Credit will only
be awarded if your work is included. (lOp
STAT 3600 Summer 2017' Exam 2
Instructor: N gartelbaye Guerngar
Namei Kev Svlmoh
Banner ID:
Instructions
Read each problem very carefully. Show all your work. Credit will only
be awarded if your work is included. $5lex/u
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STAT 3600 Summer 2017 Exam 3
Instructor: Ngartelbaye Guerngar
Name. VOA" glAllGw
Banner ID:
Instructions
Read each problem very carefully. Show all your work. Credit will only
be awarded if your work is included. (20pts) Problem 1. The joint pmf of two d
Chapter 5
Distributions of Functions of Random Variables
5.1 Functions of One Random Variables
Let X be a random variables of the continuous type. If we consider a function
of Xsay, Y = u(X)then Y must also be a random variable that has its own
distributi
STAT 3600 Final Practice
Instructor: Ngartelbaye Guerngar
All the hw questions, and questions from the four
tests are possible questions for the final exam!
Problem 1. There are two coins. The first coin is fair. The second is such
that P (H) = 0.6 = 1 P
Answers to Final practice.
1. 61/200, 25/61.
2. (a) k=4
(b) 0.104.
(c) 0.707
(d) 0.667
(e) 0.03
(f) 2x for 0 < x < 1 and 0 for other values of x.
(h)X = U 1/4 .
3. (a) 0.98. (b)-0.105, 1 2/2 (c) F (a) = 0 for a 1. F (a) = 1/2 + a +
a2 /2 for 1 < a 0. F (a
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STAT2510 Final ?\(G_C,'V\. (,0. Name: 3an . E (
IfX ~B(n,p), then #X =n-p and 0X : x/n.p-':(.1p)
If X N B(n,p) and 13 = X/n, then 4'
W = p, 010 _ p (n )
Furthermore, i
if ,uo _ * s i
T = , it
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STAT 3600
0.1. Basic Concepts.
The study of probability stems from the analysis of certain games of chance, and it
has found applications in most branches of science and engineering. In this chapter
the basic concepts of probability theory are presented.
2. Discrete Distributions
2.1 Random Variables of the Discrete Type
Denition 2.1-1 Given a random experiment with an outcome space S, a function
X that assigns one and only one real number X(s) = x to each element s in S is called
a random variable. The s
Chapter 3
3.1 Random Variables of the continuous type
X is a continuous r.v. only if its range contains an interval (either nite or innite)
of real numbers.
Examples of continuous r.v. are the length of time it takes when waiting in line to
buy frozen yog
Chapter 4
Bivariate Distributions
4.1 Distributions of two random variables
Denition 4.1 -1 Let X and Y be two random variables dened on a discrete probability space. Let S denote the corresponding two-dimensional space of X and Y, the
two random variable
Question 1
2.5 out of 2.5 points
The
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Question 2
2.5 out of 2.5 points
Which of
the
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variables
use
the ordinal
scale of
measureme
nt?
Question 3
2.5 out of 2.5 points
Which data
woul
FOOD AND BEVERAGES
Copyright 2008 by Valent Camps. Prepared as a base for discussion and
not as an illustration of management, adequate or inadequate, of a certain
situation.
FOOD AND BEVERAGES
Franois Boudy had been the Sales Manager of the family-owned
ACADEMIC YEAR 2016-2017
1.
A
Canada is one of the most economically developed countries in the world
over the recent years, their GDP is increasing 2% every year since 20 years.
By the 2 graphs, we can see that in overall it has been increasing seriously
stie Ll. 0 MW it .
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STAT2510 Exam 1 Name: U QW L QUKUA
Problems 1-2. A study of beverages collects data of caffeine contents for multiple
popular beverages. Two major beverages, coffee and tea, were considered. Drip
coffee, brewed coffee, E
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Problems 1-2. Read each brief report of statistical research and identify whether it Is an Q22&Ecmgtt
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STAT251O Practice Exam3 Name: lAlllYe EEG!)
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The following for
STAT 7010: Experimental Design II
1. Completely Randomized Designs
Xiaoyu Li
Department of Mathematics and Statistics
Auburn University
Spring 2017
Xiaoyu Li (Auburn University)
STAT 7010 Lecture Notes
Spring 2017
1 / 48
Outline
1
Introduction
2
The Fixed
Chapter 10
10.1
Sampling Distribution of the Difference Between Two Sample Means for Independent Samples
Previous chapters have dealt with confidence intervals for one population mean. This
chapter deals with differences between two population means.
For
Study
Guide
for
Exam
2
As you know, Exam 2 is scheduled for Tuesday, November 15 starting at
5:00pm. You may bring your notes, any books, and you may use your own
computer for this exam. You will need to upload all your work on the Moodle
course
website
a
Contribution of Root Morphological Traits to Phosphorus Uptake in Maize
Yongli Zhao, Liting Zhou, Luoqi Miao
Abstract
Up to date, as a limited factor in the agricultural practical issue, phosphorous deficiency is a limited factor
in the production of maiz
Page 1 of 4
CHEM3160 Midterm Exam 2, 10/30/15
Do not turn the page over until you are instructed to do so!
1. Please remember to sign all pages of the answer sheet.
2. There are three problems worth 100 points altogether. The score on this test counts for
STAT3010 Homework 5 Solution
February, 26, 2016
Problem 1: Let X be the diameter in microns.
1. X = 1/ = 1/0.25 = 4 microns
2. sX = 1/ = 1/0.25 = 4 microns
3. P (X < 3) = 1 e0.25(3) = 0.5276
4. P (X > 11) = 1 (1 e0.25(11) ) = 0.0639
5. Let m be the median
STAT3010 Homework 4 Solution
February, 23, 2016
Problem 1:
2 = p(1 p) = 0.24
1. X Bernoulli(p), where P = 0.4. X = p = 0.4, X
2. No. No. A Bernoulli random variable has possible values 0 and 1. The possible
values of Y are 0 and 2.
3. Y = 2X, where X Bern
STAT3010 Homework 2 Solution
January, 26, 2016
Problem 1:
1. Event A = cfw_SSF, SF S, F SS
2. Event B = cfw_SSS, SSF, SF S, F SS
3. For Event C, the system must have component 1 working (S in the first position),
then at least one of the other two compone
STAT3010 Homework 7 Solution
April, 11, 2016
= 783, s = 120, n = 73. The The null and alternate hypotheses
Problem 1: X
are H0 : 750 versus H1 : > 750. z = (783 750)/(120/ 73) = 2.35. Since
the alternate hypothesis is of the form > 0 , the P-value is the