112912017
Question 1
Question 2
https:fcecil.blackboard.cornlwebappslassessmentlreviewlreview.jsp?attemptgid=i169383871 &courseiid:744263_1 &content_id=_1 1 80364_1 &retum. . .
Open up the "Tuesday Men's Handicap" dataset on StatCrunch.
Review Test Submis
1129/2017 Review Test Submission: Lesson 4 For Real Homework e
Questlon 1 . 6 out of 6 points
In the question-writers neighborhood, the mean square footage of houses is 1984 with a standard devia
669.
Suppose a new house is built and it has a zscore of 2.
,_ #2412017
Question 1
Question 2
Review Test Submission: Lesson 3 For Real Homework w
5 out of 5 points
The Titanic unfortunately sank, but a dataset exists that contains information about each passenger.
Authorities were able to recover the following:
P
1123/2017
Question 1
Open up the "General Social Survey 2008" dataset on StatCrunch.
Question
The variable "Age" is
The varible "Gender" is
The variable "Highest Year School is
The variable "Father Highest Degree" is
The variable Number of Siblings" is
Th
1/28l2017 Review Test Submission: Lesson 4 Practice Homework
Question 1 8.33333 out of 8.33333 poin
Open up the Direct Loans" dataset on StatCrunch.
Based on the shape of the distribution of Number of Loans", what are the best measures of center and spre
1/24l2017 Review Test Submission: Lesson 3 For Real Homework u
Question 1 - 5 out of 5 points
The Titanic unfortunately sank, but a dataset exists that contains information about each passenger.
Authorities were abie to recover the following:
Passenger Na
1 l24l201 7
Review Test Submission: Lesson 3 "Practice Homework
Question 1
Open up the "General Social Survey 2008" dataset on StatCrunch.
Make a contingency table of Gun in Home" versus "Region of IntervieW".
What proportion of all respondents were from
112019017
Question 1
Question 2
Question 3
Question 4
Review Test Submission: Lesson 1 For Real Homework 7
10 out of 10 points
In StatCrunch, you put the "Who", or the observations, or the cases, in .
Selected Answer: 69 rows
Correct Answer: 6 rows
10 out
1/231'2017
Question 1
Question 2
Question 3
Question 4
Review Test Submission: Lesson 2 "Practice" Homework
Open up the Generai Social Survey 2008 dataset on StatCrunch.
Make a pie chart for Highest Degree", grouped by "Race".
0 out of 10 points
What per
Chapter 1 - Fundamentals
Section 1.4
Rational
Expressions
1.4 - Rational Expressions
Definitions
Fractional
Expression
A quotient of two algebraic expressions is called a fractional
expression.
3x 2
x 2 3x 4
x
x 1
Rational
Expression
A rational expressi
Chapter 4 Exponential and
Logarithmic Functions
Section 4.1
Exponential
Functions
4.1 - Exponential Functions
Exponential
Functions
What is an exponential function?
An
exponential function has its variable in the
exponent.
It
may be used to model rapidly
Chapter 1 - Fundamentals
Section 1.5
Equations
1.5 - Equations
Definitions
Equation
An equation is a statement that two mathematical statements
are equal.
35 8
or
4 x 7 19
Solutions
The values of the unknown that make the equation true are
called the so
Chapter 4 Exponential and
Logarithmic Functions
Section 4.2
The Natural
Exponential
Function
4.2 - The Natural Exponential Function
Exponential
Functions
What is a natural exponential function?
An
exponential function whose function is e.
4.2 - The Natura
Chapter 3 Polynomial and Rational
Functions
Section 3.2
Polynomial
Functions and
Their Graphs
3.2 - Polynomial Functions and Their Graphs
Definition
3.2 - Polynomial Functions and Their Graphs
Example
Find
the degree, leading coefficient, leading term,
co
Chapter 2 - Functions
Section 2.6
Combining
Functions
2.6 - Combining Functions
Algebra of Functions
2.6 - Combining Functions
Example 1 pg. 196
Find
6.
f + g, f g, fg, and f/g and their domains.
f x x 2 x,
2
2
,
10. f x
x 1
g x 3x 1
2
x
g x
x 1
2.6 - C
Chapter 1 - Fundamentals
Section 1.7
Inequalities
1.7 - Inequalities
Rules for
Inequalities
1.7 - Inequalities
Linear Inequalities
An
inequality is linear if each term is constant or a
multiple of the variable.
To
solve a linear inequality we isolate the
Chapter 4 Exponential and
Logarithmic Functions
Section 4.3
Logarithmic
Functions
4.3 - Logarithmic Functions
Exponential
Functions
Recall from last class that every exponential
function f (x) = ax with a >0 and a 1 is a oneto-one function and therefore h
Chapter 3 Polynomial and Rational
Functions
Section 3.7
Rational
Functions
3.7 - Rational Functions
Example
Rational
functions are quotients of polynomials. For
example, functions that can be expressed as
P( x)
r ( x)
Q( x)
where P(x) and Q(x) are polyno
Chapter 3 Polynomial and Rational
Functions
Section 3.4
Real Zeros of
Polynomials
3.4 - Real Zeros of Polynomials
Example
A polynomial
in factored form:
P x x 2 x 3 x 4
A polynomial
in expanded form:
P x x3 x 2 14 x 24
3.4 - Real Zeros of Polynomials
The
Chapter 2 - Functions
Section 2.7
One-to-One
Functions &
Their Inverses
2.7 - One to One Functions & Their Inverses
Definition
A function
with domain A is called a one-to-one
function if no two elements of A have the same
image, that is,
f x1 f x2 wheneve
Read and interpret boxplots, histograms, bar charts, dot plots?
Categorical- Bar Chart, Pie Chart, Table
Quantitative-Histogram, Dot Plot, Stem & Leaf, Boxplot
For quantitative variables, we note shape, center, spread and unusual features.
* For distribu
Binomial Model
n= number of trials, p=probability of successes X=number of
successes in N trials
mean:
Fail to
Reject Ho
Correct
Decision
Type II
Error
=np
= npq
Standard Deviation:
Normal Model to Approximate Binomial
A Binomial Model is approximately N