Name:
ID:
Solution to Extra Homework
1. Proportion of women with high cholesterol. Too much cholesterol in
the blood increases the risk of heart disease. Young women are generally
less aicted with high cholesterol than other groups. The cholesterol levels
Homework 10
DDT is a pesticide banned in the United States for its danger to humans and animals. In an
experiment on the impact of DDT, 6 rats were exposed to DDT poisoning and 6 rats were not.
For each rat in the experiment, a measurement of nerve sensit
Homework # 8
CDF of X:
Let U=F X ( x )
4 x
F X ( x )=1e
X=
1
log ( 1U ) , where
4
Below if a histogram of generated data:
0 U 1
300
200
0
100
F re q u e n c y
400
500
Generated Exponential(4) Sample,
0.0
0.5
1.0
1.5
2.0
Simulated Observations
Below is Q-Q
STT200
Name:
Quiz 2 (A)
Section:
PID:
I. The following is a histogram showing the distribution of the average property damage
caused by tornadoes per year over the period 1950 to 1999 in each of the 50 states
and Puerto Rico (51 observations in total). Th
Hindenburg Theory Assignment Instructions
Chemistry
September, 2014
We are going to consider the following question over the course of a few days:
What really caused the Hindenburg disaster?
In order to answer this question we are going to learn about hyd
ETHOGRAM/POSTER ASSIGNMENT
An ethogram is a descriptive catalog of the behavioral motor patterns displayed by individuals in a given
species. In a generic bird, for instance, examples of such behavioral motor patterns might include wing
flapping, pecking,
Homework #10
Let
f ( y , ) be joint pdf of Y & f ( y , ) is bivariate normal with parameters:
, 2 , , 2 ,
=
Where
COV ( y , )
Var ( y ) Var ( )
From property of bivariate normal distribution, random variable
y
distributed, with the following mean and
Homework # 5
Solution:
1. Shift y variable by 1:
y
f Y ( y )=P ( Y = y ) =(1 p) p
2. Express unknown parameter p as:
q=1 p , then:
1
1
f ( v )= =
= (a q y )
p 1q y=0 y
3. Let:
where:
for
y=0,1,2,3 .
y
f Y ( y )=P ( Y = y ) =(q) (1q)
a y =1 y=0,1,2,3 .
4.
Homework # 6
Problem # 1
a. Create a histogram of Xi + Yi and a histogram of Wi (overlaid on the first histogram). Comment
on your findings. [2 points]
Answer/Discussion:
Since the beta parameter is different for W, the distributions of X+Y is different f
TABLE OF CONTENT
INTRODUCTION
1
TYPES OF PROBABILITY SAMPLING
2.1 SIMPLE RANDOM SAMPLING
2-3
2.2 SYSTEMATIC RANDOM SAMPLING
3-4
2.3 STRATIFIED SAMPLING
2.4 CLUSTER SAMPLING
4-5
5-6
1.0 INTRODUCTION
PROBABILITY SAMPLING
A probability sampling method is any
50
60
70 80
90
Solution: use
60 70
80
90
50
70 80
90
Quantiles for tw ins$Sample2
50 60 70 80 90 100
50
70
90
Quantiles for tw ins$Sample1
70
80
90
Logistic QQ - Sample 2
60
60
70
80
90
Weibull QQ - Sample 2
50 60
Q u a n tile s fr o m " lo g is tic " d i
STT200
Name:
Quiz 4 (A)
Section:
PID:
I. Employment data at a large company reveal that 68% of the workers are married,
that 55% are college graduates, and that 60% of the college grads are married. What
is the probability that a randomly chosen worker
(1
STT200
Name:
Quiz 3 (A)
Section:
PID:
I. We have a special die and the probabilities that this die will land on 1, 2, 3, 4, 5, or 6
when tossed once is given in the following table:
x
P (cfw_x)
1
0.2
2
0.15
3
0.2
4
0.15
56
0.2 ?
(1). What is the probabili
Hindenburg Theory Assignment Grading Rubric
I. Seminar
Participation
II. Answer to
the question:
What really
caused the
Hindenburg
disaster?
III. Evidence
explained in
Reasoning
IV. Writing
Score Tally:
Part I:
Part II:
Part III:
Part IV:
Total (40):
Mini