Stat 200
Extra credit question
We were asked to find Sd for given problem. I did go head and lay out by one to one in order to
find the mean.
Roll
Probability
x Probability
2
2 3.5 = -1.5
(-1.5)^2 = 2.25
1/36
2.25 x (1/36)
3
3 3.5 = -0.5
(-0.5)^2 = 0.25
2
STAT 202
Chapter 9
Chapter 9
Introduction to Probability.
Chapters objectives
Definitions of Probability.
Randomness and probability.
Probability models.
Discrete vs. continuous sample spaces.
Probability rules.
Continuous random variables.
Risk and odds.
STAT 202
(Chapter 11)
2
Continuous Probability Distributions
Chapter 11
Chapter objectives
Normal distributions.
The standard Normal distribution.
The 68-95-99.7 rule.
Using the standard Normal table (Table B).
Inverse Normal calculations.
3/19/17
2
STAT 202
Chapter 12 (a)
2
Discrete Probability Distribution
Chapter 12 Objectives
The Binomial setting and Binomial distributions.
Binomial mean and standard deviation.
The Normal approximation to Binomial distributions.
The Poisson distributions.
Po
STAT 202
Chapter 10
Chapter 10
General Rules of Probability
Chapters objectives
Independent events.
Conditional probability.
Multiplication rule.
Tree diagrams.
Bayes Theorem.
3/19/17
2
3
Intersection of Events and Independence
Two events are indepe
STAT 202
Chapter (13)
Chapter 13
Sampling distributions
objectives
Chapter
Parameter versus statistic.
Sampling distributions.
Sampling distribution of the sample mean
.
The central limit theorem.
The law of large numbers.
3/19/17
2
Parameter versus
STAT 202
Chapter 12 (b)
Discrete Probability Distribution
Chapter 12 (b) Objectives
2
Poisson Distribution.
Combining the Binomial with Poisson Distribution.
Expectation and Variance of Discrete Random Variable.
3/19/17
2
Poisson Distribution
P( X k ) e
210000
250000
290000
300000
375000
375000
900000
#2 Population- All patients of New York City hospitals
Sample: 1254 patients at New York City hospitals
Statistic: Hospitalization could have prevented in 25.8% of these 1254
cases.
Parameter: The percent o
Statistics
Prof. Miller
Answers for Measures of Central Tendency and Dispersion
#1. Consider the data set: 70, 72, 84, 88, 90, 96, 96
x
(a)
2
n
=
7
x = 666 95.1, s
n
x -
=
59 6 2
7
2
n
64036
n 1
111.8095238,s
6
x
x -
2
=
7
n
51416
n 1
2
x
(b)
x = 596
STAT 200
March 8, 2010
Homework, Problems 24,18,32,12,18,30,24,30,10,20,26
In Eexercise 23-26, form a conclusion about statistical significance. Do not make any formal
calculations. Either use results provided or make subjective judgments about the result
Name _Date _
Elementary Statistics
Period _
Chapter 2 Review: Summarizing & Graphing Data
Quick Quiz p.74 #1-10
Use the following information to answer questions 1-3: When one is constructing a table representing the frequency
distribution of weights (lbs
Name _
Date _
Elementary Statistics
Period _
Midterm Review
1. The Organization for Economic Cooperation and Development provided the following mean weekly
instruction times (hours) for elementary and high school students in various countries. If necessar
2.2part 2 Assignment: p.51-53 #2, 3, 6, 13, 14, 18, 22, 30
2. After construction of a relative frequency distribution summarizing the times that males spend each
day thinking about females, what should be the sum of the relative frequencies?
3. In a Harri
Introductory definitions
Population- the set of all individuals under consideration.
Parameter- a numerical characteristic of a population.
Sample- a subset of a population.
Statistic- a numerical characteristic of a sample.
One goal of statistics: Use th
What is statistics (and why is it the most important course you
will take in college)?
By Prof. G. Miller
The word statistics is used differently in everyday colloquial language than it will be used
in this course. This short essay will help you to develo
GraphicalDepictionofData
Statistics Prof.Miller
In contrast to the age example where we organized the data in a frequency
distribution with each value in one column and the number of times that value
occurred (frequency), in the example below, there are
Statistics Prof.Miller
MeasuresofCentralTendencyandDispersion
1. Consider the data set: 70, 72, 84, 88, 90, 96, 96
(a) Find the mean and standard deviation.
The mean is 85.14
x
70
72
84
88
90
96
96
596 SO x = 85.14
s
x x
n 1
x-x
-15.14
-13.14
-1.14
2.
Statistics
Prof. Miller
Answers for Measures of Central Tendency and Dispersion
#1. Consider the data set: 70, 72, 84, 88, 90, 96, 96
x
(a)
2
n
=
7
x = 666 95.1, s
n
x -
=
59 6 2
7
2
n
64036
n 1
111.8095238,s
6
x
x -
2
=
7
n
51416
n 1
2
x
(b)
x = 596
Excel Tips for MAT 150:
Menu commands:
Data . . .Sort
To arrange a column of data into order from lowest to highest. Select data to be
sorted, then go to menu and complete dialog boxes. If you only select one
column, Excel will ask if you want to expand t
Gustavo Martinez
American Government POL 100 0800
Prof. Leontardiris
Chapter #1 Questions
2. The two different types of liberty are negative and positive liberty. I prefer positive liberty
for multiple reasons. Proponents of negative liberty dislike the i
Cassandra Rigney
Normal Distribution
1. The gestation period (length of pregnancy) for male babies born in New York is
normally distributed with a mean of 39.4 weeks and a standard deviation of 2.43 weeks.
(a) What percent of mothers of male babies are pr
Probability Problems
Cassandra Rigney
1. In a lottery game, you pick one number from 000 to 999. If you pick one such number, what is the
probability that you will win the lottery?
P(1) x p(1000) = 1/1000 (0.1%)
2. 45% of all tourists who visit NYC go to
(data from US Census Bureau at census.gov)
State
Median
Income
Alabama
42,278
Alaska
67,629
Arizona
49,254
Arkansas
44,922
California
60,487
Colorado
60,940
Connecticut
70,161
Delaware
57,522
Florida
46,140
Georgia
49,555
Hawaii
71,223
Idaho
53,438
Illino