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Probability eLesson 
Probability Lesson 1



Probability Lesson 2



Venn Diagrams




This highly engaging eLesson on probability includes two parts, which together cover over 400 screens/pages of information. There is one supplementary electronicformat book on Venn Diagrams. Each book has illustrative diagrams to explain theoretical concepts clearly and lucidly. There are plenty of examples, tips, and detailed explanations, which provide you with a strong foundation on the basics and the applications of probability and probabilistic concepts. Practice with relevant and germane questions and increase the level of confidence with which you tackle probability questions on testday. Use this electronic book to score high on the GMAT More… 




Statistics eLesson 
Statistics Lesson 1



Statistics Lesson 2




This highly effective eLesson on statistics includes two parts, which together cover over 300 screens/pages of information. Each book has illustrative diagrams to explain theoretical concepts clearly and lucidly. There are plenty of examples, tips, and detailed explanations, which provide you with a strong foundation on the basics and the applications of statistics and statistical concepts. Practice with relevant and germane questions and increase the level of confidence with which you tackle statistics questions on testday. Use this electronic book to score high on the GMAT. More… 



Permutations & Combinations eLesson 
Permutations & Combinations 1



Permutations & Combinations 2



Permutations & Combinations 3






The Exponent of prime p in n!



Subsets of a set with finite elements




This highly engaging eLesson on permutations and combinations includes three parts, which together cover over 550 screens/pages of information. Each book has illustrative diagrams to explain theoretical concepts clearly and lucidly. There are five supplementary lessons to enhance your understanding of specific topics. There are plenty of examples, tips, and detailed explanations, which provide you with a strong foundation on the basics and the applications of counting and arrangement concepts. Practice with relevant and germane questions and increase the level of confidence with which you tackle permutations and combinations questions on testday. Use this electronic book to score high on the GMAT. More… 



Geometry eLesson 

Geometry Lesson 1



Coordinate geometry Lesson 1



Coordinate geometry Lesson 2



Circles









This highly focused and eLesson book on geometry includes four parts, which together cover over 750 screens/pages of information. Each book has illustrative diagrams to explain theoretical concepts clearly and lucidly. There are five supplementary lessons to enhance your understanding of specific topics. There are plenty of examples, tips, and detailed explanations, which provide you with a strong foundation on the basics and the applications of geometry concepts. Practice with relevant and germane questions and increase the level of confidence with which you tackle geometry questions on testday. Use this electronic book to score high on the GMAT More… 



FACTS
The GMAT is becoming more competitive every year.
The median GMAT scores and cutoff GMAT scores for almost every school have steadily increased in the last few years.
The GMAT is becoming more difficult every year.
The GMAT scoring is less accurate at high score levels. Because more students are doing well in the math section, the test takers have started incorporating more difficult questions and more advanced topics to relieve this score clustering.


Features of our eLessons 

Focused 

Comprehensive 

Question drills 

Challenging questions 

Worked examples with
detailed explanations 

Tip boxes 

Advanced topics 

Include data sufficiency questions 

Easy to read with userfriendly interface 

Electronic format (portable) 

Keyboard shortcuts for easier navigation 


The GMAT is becoming more international every year.
In the last ten years, the number nonU.S. citizens taking the GMAT has risen an incredible 47%. According to Frederic McHale, senior VP of assessment and research at the General Management Admission Council, which administers the GMAT, Chinese, Japanese, and Korean nationals score an average of 70 points higher than their North American counterparts.
The GMAT is becoming more crucial every year.
Because of the dramatic improvement in the ability of testtakers, schools are faced with a slew of high GMAT scores; the schools have started using higher GMAT scores in their own ‘process of elimination’.
The GMAT is becoming more accessible every year.
With Pearson VUE’s broader reach, computerization of the test, and with the rising fortunes of the Asian middleclass, more and more international students will take the GMAT. Most of this expanded pool of test takers has superior quantitative skills.

GMAT SCORE eLESSONS THAT PROVIDE A FOCUSED AND ENHANCED LEARNING EXPERIENCE 




Now consider these facts
Over the past few years, the number of GMAT questions involving statistics, permutations & combinations, probability, and geometry has increased substantially.
Unlike the vast majority of GMAT concepts, most test takers do not cover these subjects in high school or college.
The test makers rely on these topics to create the most challenging problems, heightening the difficulty of the test.
Despite the growing number of these questions, the presence of these topics in test preparation guides and courses remains conspicuously limited.
Test preparation companies are lagging behind the recent trends, and do a disservice to the test takers by not exposing them to these more difficult concepts and questions.
"The GMAT is not an intelligence test," says Rod Garcia, director of MBA admissions at MIT's Sloan School of Management. The average score attained by applicants accepted at Sloan is 703. The concepts tested in the GMAT can be learnt, practiced, and mastered using the right tools and prep material.
Your GMAT score is probably the most important factor in determining whether you will be admitted to a top business school. 




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Lessons can be downloaded via a link after your purchase. You will receive a serial number for the product you purchase by email from sales@gmatscore.com. Please add this email address to your address book and whitelist, so that it is not sent to your junk mail folder or otherwise deleted.
Product activation:
When you first install the products you purchase, you need to activate the products via an internet connection. This anonymous product activation will allow you to install the purchased product on two computers. Please download the product on the computer on which you intend to use the product; reinstalling the product on a different machine will render it nonfunctional.
Internet connection required:
To run our tests and elessons, and to take our courses, you will require a stable Internet connection on the computer you install the products. Our courses consist of products ( all tests and many elessons) that are run online, as well as others (all readings, many elessons, exercises, etc.) that run offline 

















Probability eLesson
Probability Part 1
What is probability?
Six worked examples
Some definitions
Probability of more than one event
Listings, tables, and tree diagrams
Seven worked examples
Compound events
The Use of the Conjunction AND
Worked example
The Use of the Conjunction OR
Worked example
Combination of AND and OR
Two worked examples
Relationship between AND and OR
Two worked examples
Independent events
Four worked examples
Mutually exclusive or disjoint events
Worked example
Conditional probability
Three worked examples
Using Venn diagrams to find probabilities
Two worked examples
Probability Part 2
100 worked examples with detailed explanations
Venn Diagrams
What are they?
Notations Union (or) Intersection (and)
Distributive property of Union and Intersection
De Morgan’s Laws
Various regions in a Venn diagram
Disjoint sets
Subsets Worked example
Worked example
Looking at conditional probabilities through Venn diagrams
Number of regions in a Venn diagram
Other formulas (2 Sets)
Other formulas (3 Sets)
Fifteen worked examples with detailed explanations

Geometry eLesson
Geometry Lesson 1
Lines and angles
Angles
Worked example
Perpendicular and parallel lines
Worked example
Polygons
What is a polygon
Types of polygons
Polygons classified according to number of sides
Eight worked examples
Hexagon
Triangles
Types of triangles
Worked example
Area of a triangle
Pythagorean Theorem
Similar triangle
Congruent triangles
Exterior angles
Worked example
Ratios in a right triangle
Median of a triangle
Some important theorems
Midpoint theorem
Basic proportionality theorem
Interior angle bisector theorem
Exterior angle bisector theorem
Quadrilaterals
Parallelogram
Rhombus
Rectangle
Square
Worked example
Trapeziod
Circles
Four worked examples
Mensuration
Cuboid (rectangular box)
Cube
Worked example
Cylinder
Right circular cone
Sphere
Pyramid
10 worked examples with detailed explanations
22 worked examples with detailed explanations
Coordinate Geometry Lesson 1
The Cartesian coordinate system
Parallel and perpendicular lines
Slope of a straight line
Parallel lines
Perpendicular lines
Worked example
Midpoint theorem
Exercise
Distance formula
Corollary
Example
Section formula
Worked example
Angle a line makes with a positive direction of the xaxis
Worked examples
Equation of a straight line in different forms
SlopeIntercept form
Pointslope form
Twopoint form
Intercept form
Normal (or perpendicular) form
General form
Condition for being parallel
Condition for being perpendicular
Four worked examples
Families of lines
One parameter family of lines
Examples of one parameter families of lines
Two worked examples
Position of two points relative to a line
Worked example
Distance of a point from a line
Two worked examples
Translation of axes
Worked example
Parametric equations
Worked example
Other curves (conic sections)
Rectangular hyperbola
Parabola
Two worked examples
Hyperbola
Ellispse
Two worked examples
Coordinate Geometry Lesson 2
37 worked examples (including data sufficiency) with detailed explanations
Circles
Prerequisites for this lesson
What is a circle
Tangent to a circle
What is a tangent
Chord of a circle
What is a chord
What is a secant
The crossed chord theorem
Angle properties of a circle
The radian measure
Angle at the center of a circle
Sector of a circle
Worked example
Segment of a circle
Worked examples
Angles in the same segment of a circle
Worked example
Angle in a semicircle
Worked example
Arc properties of circles
Major and minor arcs
Axiom of equal arcs
Arc length
Worked example
Tangent properties of circles
Tangents drawn from an external point of a circle
Worked example
Alternate segment theorem
Worked example
Common tangents to circles
Length of common tangent
Important formulas
Important properties of circles
Worked example
Polygons in circles
Annulus
Worked example
Five worked examples
Other lessons in the “Geometry Course Module”
Angles in a polygon
Area of triangles
Parallelograms
Cyclic quadrilaterals
Pythagorean triplets





Statistics eLesson
Statistics Lesson 1
What is statistics?
Measures of central tendency
Mean, median and mode
Arithmetic mean (mean)
Mean of ungrouped data
Mean of discrete series
Mean for grouped data (continuous series)
Properties of the mean
Six worked examples
Median
Advantages of the median
Two worked examples
Mode
Eight worked examples
Two exercises
Relative positions of mean, median, and mode
Eight worked examples
Empirical relation between mean, median, and mode
Two worked examples
Range
Two worked examples
Deviation & standard deviation
Exercise
Four worked examples
Statistics Lesson 2
Test your understanding from Lesson 1
Five question exercise (with answer keys)
The standard deviation
Six worked examples
Empirical rule
Effect of linear transformation
Six worked examples
The coefficient of variation (CV)
Short cut formula for standard deviation
Three worked examples
Worked examples
31 worked examples (including data sufficiency) with detailed explanations

Permutations & Combinations eLesson
Permutations & Combinations Lesson 1: Counting Techniques
The Addition Principle
Three worked examples
The Multiplication Principle
Eight worked examples
Practice
Permutations
Three worked examples
The Factorial Notation
Four worked examples
P(n,n)
Two worked examples
Practice
P(n,r)
Six worked examples
Combinations
Worked example
The Relationship Between Permutations & Combinations
Three worked examples
Circular Combinations
Six worked examples
Pigeon Hole Principle
Four worked examples
Socks in a Drawer Principle
Worked example
Cycles
Worked example
Scheduling Principle
Four worked examples
Subsets of a set with finite elements
Two worked examples
Binomial coefficients
Worked example
How many handshakes?
Four worked examples
Diagonals of a polygon
Permutations & Combinations Lesson 2: Arrangements
Arrangements when repetition is allowed
18 worked examples with detailed explanations
Total number of possible arrangements
Pascal’s formula
Binomial Expansion
Total Possible Arrangements
Worked example
Solving equations over nonnegative integers
Two worked examples
Permutations & Combinations Lesson 3: Worked examples
31 worked examples with detailed explanations
Supplementary lessons
Counting Handshakes
Circular permutations
The Scheduling Principle
The Exponent of prime p in n!
Subsets of a set with finite elements

Sentence Correction eLesson
Pronouns & Pronoun Errors
Definition
Types of pronouns
Subjective and objective pronouns
No ambiguity in reference
A pronoun must agree with its antecedent
Pronouns as compound subjects or compound objects
Predicate nominative construction
Who vs whom/Whoever vs whomever
Possessive pronouns
Pronouns before gerunds
Indefinite pronouns; Everyone and Everybody
Pronouns as appositives
Pronouns with comparatives (subjective case)
Pronoun use with ‘Let’s’
Intensive pronouns
Reflexive pronouns
Demonstrative pronouns
Pronoun use with infinitives (objective case)
Pronouns as antecedents
Pronoun gender confusion
Exercises
Sentence Correction Primer Part 1: Sentences
What makes a sentence?
Structure of sentences
Simple
Complex
Compound
Complexcompound
Functional definitions
Declarative
Interrogative
Imperative
Exclamatory
ADVANCED: Style definitions
Periodic
Cumulative
Cleft
Emphatic
Determining the subject of a sentence
Mistakes people make
Runon sentences
Comma splices
Extending a sentence
Colon
Semicolon
Three dots
Dash
Sentence Correction Primer Part 2: Parts of speech
Verb
Definition and examples
Infinitive form of a verb
Split infinitives
Verb tenses
Does English really have a future tense?
Simple is best
Subject and object of a verb (Transitive and intransitive verbs)
Active and passive voice
Participles
Modals
Hypotheticals (subjunctive mood)
Twoword verbs
Noun
Definition and examples
Types of nouns
Title case
Other words used as nouns
Concrete and abstract nouns
Countable and noncountable nouns
Possessive nouns
Pronoun
Definition and examples
Who vs whom
Types of pronouns
Demonstrative pronouns
Indefinite pronouns
Interrogative pronouns
Possessive pronouns
Absolute possessive pronouns
Relative pronouns
Reciprocal pronouns
Reflexive and intensive pronouns
Whose and Who's
Which, in which, and to which
That and Which
I, Me, and Myself
Adjective
Definition and examples
Types of adjectives
A or An
Participles as adjectives
Infinitives as adjectives
Prepositional phrases as adjectives
Clauses as adjectives
Adverb
Definition and examples
Adverbial clauses and phrases
Placement of adverbs
Preposition
Definition and examples
Prepositional phrases
Except and Accept
Past and Passed
Into, onto and up to
Do not end a sentence in a preposition
Unnecessary prepositions
What follows a preposition?
Prepositions govern the objective case
Whether or If
Conjunction
Definition and examples
Types of conjunctions
Coordinating
Correlative
Subordinating
Starting a sentence with a conjunction
Comma or semicolon before a conjunction?
Interjection
Definition and examples
Punctuation








