birth measures
Description: This dataset includes birth measures and infant mortality data. The data obtained from the Community Health Status
Indicators Report is a collection of nationally available indicators for counties representing several areas of
Important notes:
1. Dehydrated= poor performance
2. Daily sweat loss in athletes: 1 to 12 quarts/day
3. Water turns off thirst too soon.
4. Sweat is more than just water. (mEq/L)
5. Food = Energy
6. Too MUCH water? Hyponatremia: = too little sodium in blo
The life expectancy in Iraq in terms of years since 1990?
71.5
71
70.5
f(x) = - 0.06x + 70.6
R = 0.21
70
Lfe expectancy
69.5
Linear ()
69
68.5
68
67.5
67
0
5
10
15
20
25
Years since 1980
X Variable 1 Residual Plot,
Residuals
10
5
0
68
-5
-10
-15
-20
68.5
http:/www.vocativ.com/335705/correlation-causation/
The above article claims that a new study has found that correlation does, in fact, imply
causation. As much as the scientists who discovered this might want to believe this to be true, it simply
is not.
Assignment #5
Due Nov. 11
1. Clearly describe two categorical variables in the health care area. One variable should
specify two different treatments for a health problem in a prospective study, e.g., low-fat
diet vs. low-carb diet, chemotherapy vs. no ch
Homework 4
5a. > table(hw4$region)
Africa Asia Latin.Amer Near.East
18 10 16 6
5b. > hist(hw4$tfr,main="Average Number of Children per Woman", xlab="number of
children",right=F)
5c. > boxplot(hw4$tfr~hw4$region,main="Average Number of Children per Woman",
SDS321HW2
Nidhi Rathod ndr478
1. You flip a fair coin 3 times, determine the probability of the below events.
Assume all sequences are equally likely.
Possible outcomes: HHH, HHT, HTH, HTT, TTT, TTH, THT, THH
8 total
a. Three heads: HHH = 1/8
b. The sequ
SDS321HW3
Nidhi Rathod ndr478
1. How many permutations of the string of letters ABCDE are there?
5 * 4 * 3 * 2 * 1 = 5! = 120
2. How many five-letter words with distinct letters are there?
26 * 25 * 24 * 23 * 22 = 7, 893, 600
3. How many five-digit number
SDS 302 - Homework 5 (20 points)
Excel (4 pts)
You will use the dataset from Independent/Paired Pre-Lab to answer the following question;
Were the second and third readings of systolic blood pressure significantly different from one
another?
Run the appro
Exam 2A Spring 2015
Th
sh is
ar stu
ed d
vi y re
aC s
o
ou urc
rs e
eH w
er as
o.
co
m
1. Eysench viewed _ as characteristic behavioral patterns that aim to regulate arousal around the individuals
baseline level.
a. agreeableness and resistance
b. neuroti
Name V KE \ I Date
Class Mr. DAmico
Homework 9.1
1) A sample of gas occupies a volume of 1248 ft3 at 0.988 atm and 28 C.
a) Calculate the pressure of the gas if its volume is decreased to 978 ft3 while its
temperature is held constant.
P101: Pavia
waggamt
Chem 201 FINAL EXAM December 12, 2015
Prof. Hoyt Prof. Powe Prof. Franco Prof. Noble Prof. Kuta Prof. Prof. Franco Prof. Kuta
TTh 11am MWF 11am MWF 9am TTh 4pm MWF 2pm Hutcherson online TTh 5:30pm
TTh Sam
01 W4 05 W12 11 Thll 18 M8 25 M12 50 75 T7
02 W10
Version 074 Exam 3: Shear shear (52375)
This print-out should have 28 questions.
Multiple-choice questions may continue on
the next column or page find all choices
before answering.
DrRuth says: In all cases, select the answer
that BEST answers the questi
Version 001 Sample Exam 3 shear (78735)
This print-out should have 30 questions.
Multiple-choice questions may continue on
the next column or page find all choices
before answering.
DrRuth says: In all cases, select the answer
that BEST answers the questi
Answer on Squarecap
Moms :
Mean = 28.31
SD = 5.25
Dads:
Mean = 31.01
SD = 6.67
For the student with a mother aged 32, what z-score
represents the mothers age?
a) A. 2.85
b) B. 0.51
c) C. 5.61
d) D. 0.70
e) E. 0.30
Answer on Squarecap
Moms :
Mean = 2
lin (el8462) Sample Exam Three Shear (51145)
3
KEavg = RT
2
R = 0.08206 L atm K1 mol1
R = 0.08314 L bar K1 mol1
R = 8.314 J K1 mol1
r
3RT
vRM S =
M
an2
p+ 2
V
(V nb) = nRT
001 (part 1 of 3) 10.0 points
DrRuth says: Remember not to round your
answer, but e
Answer on Squarecap.com
The number of cases of sepsis (body-wide infection) in hospitals has
doubled in the last 5 years. What is the annual growth rate?
Hint: You dont actually need the
initial value to solve. Make up any
points that match this scenar
SDS 302 Summary of Statistics Formulas
Mean
=
x = data value
n = sample size
Sample Standard
Deviation
Alternatively written as:
( )2
=
1
2
s = sample variance
=
Interquartile Range
=
=
Linear Regression
= +
Exponential Model
() =
Logistic M
Statistics of Market Analysis EXAM 1 Review
Variables:
Variables are the attributes that are measured on the cases
Categorical (nominal/qualitative)- tells us what group or category an individual belongs
to
Quantitative- contains measured numerical val
Statistics in Market Analysis Exam #2 Review
Sample Surveys:
Surveys- method of assessing attitudes, preferences, ect., within a population
Sample- formed based on the target population
Parameter- numerical value that characterizes the aspect of the po
Homework 9
4a. > kuk64 <- lm(Abdomen ~ Thigh, data = lab10)
4b. The multiple R-squared value of 0.5533 indicates that 55.33% of the variation in Abdomen can be
explained by the variation in Thigh.
> summary(kuk64)
Call:
lm(formula = Abdomen ~ Thigh, data
Homework 10
4a. The scatterplot confirms the linearity of reported weight vs. actual weight, the histogram confirms
the normality of the residuals, and the second scatterplot confirms equal variance.
kuk64 <- Davis
int_model <- lm(weight ~ repwt * sex, da
Continuous r.v practice problems
SDS 321 Intro to Probability and Statistics
1. (2+2+1+1 = 6 pts) The annual rainfall (in inches) in a certain region is normally distributed with mean 40 and standard deviation 4.
(a) What is the probability that, starting
Midterm 2
SDS321
Spring 2016
You may use a two (2 sided) pages of notes, and you may use a calculator.
This exam consists of five questions, containing multiple sub-questions. The assigned
points are noted next to each question; the total number of points
Midterm
SDS321
Spring 2017
You may use a two (2 sided) pages of notes, and you may use a calculator.
This exam consists of five questions, containing multiple sub-questions. The assigned
points are noted next to each question; the total number of points i
Endterm
SDS321
Spring 2016 PART 2
You may use two pages (4 sides) of notes, and you may use a calculator. You must
hand in your notes, plus any rough work, after the exam. There are 6 short questions
each of 3 points and one long question with 6 points.
P