Author Archives: hangtime

Quantitative vs Qualitative (Categorical) Data

The basic definition of quantitative data is that it is described by numbers, whereas qualitative data is everything else; however, in practice your teacher can bring up some tricky gray areas where numbers are in fact categorical. We'll prep you for that in this intriguing video!

This video appears on the page: Lots of Statistics Vocab

Parameter vs Statistic

A minor vocabulary nuisance, this video explains the difference between parameters and statistics, and how that difference will infuse your stats class with the appropriate level of statisitcal inference.

This video appears on the page: Lots of Statistics Vocab

Descriptive vs Inferential Statistics

You may not need to know these terms for a test -- but then again you might, depending on your teacher. Either way, this video introduces you to the concept of why you're taking a stats class in the first place, and how stats applies to any field of business, science, or marketing.

This video appears on the page: Lots of Statistics Vocab

Sample vs Population vs Individual

In Statistics, "population" and "individual" can refer to people, things, dogs... anything you have data for. In this data we'll discuss the ins and outs of these terms, as well as what to look for in test questions.

This video appears on the page: Lots of Statistics Vocab

Lots of Statistics Vocab
Sample vs Population vs Individual
Descriptive vs Inferential Statistics
Parameter vs Statistic
Quantitative vs Qualitative (Categorical) Data
Continuous vs Discrete
The Normal Distribution & z-score
Outliers
Reliability vs Validity
Variability & Dispersion
Statistical Significance & Confidence Intervals
Correlation vs Causation
Census vs Sample

This chapter covers lots of vocab you'll see early in your stats class: sample vs population vs individual; descriptive vs inferential statistics; parameter vs statistic; quantitative vs qualitative vs categorical data; continuous vs discrete; the normal distribution; outliers; reliability vs validity; variability vs dispersion; statistical significance & confidence interval; correlation vs causation; census vs sample.

Part of the course(s): Statistics

Mapping Rules

This video covers mapping rules, which are a sort of equation-looking way to write down a transformation or function. Things like: (x,y)-->(2x,-y).

(2x,-y).

This video appears on the page: Transformations, Isometry & Mapping

Isometry

A quick video explaining what isometry is in transformations. Not too interesting, but it may be on your quiz.

This video appears on the page: Transformations, Isometry & Mapping

Images & Preimages In Transformations

Curious what the terms "image" and "preimage" mean in the context of transformations? Here you go.

This video appears on the page: Transformations, Isometry & Mapping

Transformations & Reflections

This video explains what transformations are, and most useful, it shows you the step-by-step process for performing reflections! A key skill whether you're in geometry, or pre-calc trying to figure out if a function is even or odd based on it being reflectable across the x- or y-axis. Yes!

This video appears on the page: Transformations, Isometry & Mapping

Transformations, Reflections, Isometry & Mapping
Transformations & Reflections
Images & Preimages In Transformations
Isometry
Mapping Rules

These videos tell you what translations, rotations, and dilations are, as well as showing you the steps to do reflect a shape or function across a line using graphical techniques.

Part of the course(s): Geometry ,College Algebra

How To Find X- & Y-Intercepts
How To Find X-Intercepts and Y-Intercepts

By popular demand, this short video explains the process of finding x-intercepts and y-intercepts for any function. These are also known as "zeroes" of a function, and you'll see why by the end of this.

Part of the course(s): Math Analysis ,College Algebra ,Algebra 2 ,Algebra

How To Find X-Intercepts and Y-Intercepts

This video covers the process of solving for the x- and y-intercepts of an equation, whether it's a line or a parabola. X-intercepts are also known as the "zeroes" of a function, if you're looking for that.

This video appears on the page: Basic X-Y Graphs ,How To Find X- & Y-Intercepts

Are The Points Collinear?

This video introduces collinearity, then explains how to figure out whether x-y points are collinear or not, using both a graphing method and also an equations version for all of you algebra fans out there.

This video appears on the page: Basic X-Y Graphs

X-Intercept & Y-Intercept

This video introduces X-intercepts and y-intercepts, both what they are and how to find them.

This video appears on the page: Basic X-Y Graphs

Graphing Basic X-Y Shapes

This video introduces you to the concept of shapes on the X-Y plane, such as if they give you the center and radius of a circle and ask you to draw the graph. (If you need equations of circles and parabolas, try this.)

This video appears on the page: Basic X-Y Graphs

X-Y Graphs of Lines & Line Segments

This video covers the process of graphing points and then connecting them with a segment or a line. If you are in algebra and need equations of lines, click here.

This video appears on the page: Basic X-Y Graphs

Basic X-Y Graphs:
X-Y Graphs of Lines & Line Segments
Graphing Basic X-Y Shapes (Circles, Rectangles)
X-Intercept & Y-Intercept
Are The Points Collinear?
How To Find X-Intercepts and Y-Intercepts
segments, circles

If you're new to X-Y graphs, this is the place for you. We'll start with segments and lines without equations (for equations of lines from algebra, click here). Then we'll look at graphs of circles and rectangles, and x- and y-intercepts.

Part of the course(s): Middle School Math ,Geometry ,Pre-Algebra Class Page ,College Algebra ,Algebra

The Four Quadrants of the X-Y Plane

This video explains the four quadrants -- I, II, III, and IV -- as well as a few things you're supposed to know about them, such as whether x- and y-coordinates are positive or negative in each of the four quadrants.

This video appears on the page: The X-Y Plane

Plotting Points on X-Y Plane

This video explains how to graph points on the X-Y plane, as well as some common pitfalls to avoid.

This video appears on the page: The X-Y Plane

X-Y Plane Vocab

X-axis, Y-axis, the origin, and the four quadrants are all explained herein.

This video appears on the page: The X-Y Plane

Author Archives: hangtime

Quantitative vs Qualitative (Categorical) Data

The basic definition of quantitative data is that it is described by numbers, whereas qualitative data is everything else; however, in practice your teacher can bring up some tricky gray areas where numbers are in fact categorical. We'll prep you for that in this intriguing video!

Parameter vs Statistic

A minor vocabulary nuisance, this video explains the difference between parameters and statistics, and how that difference will infuse your stats class with the appropriate level of statisitcal inference.

Descriptive vs Inferential Statistics

You may not need to know these terms for a test -- but then again you might, depending on your teacher. Either way, this video introduces you to the concept of why you're taking a stats class in the first place, and how stats applies to any field of business, science, or marketing.

Sample vs Population vs Individual

In Statistics, "population" and "individual" can refer to people, things, dogs... anything you have data for. In this data we'll discuss the ins and outs of these terms, as well as what to look for in test questions.

Mapping Rules

This video covers mapping rules, which are a sort of equation-looking way to write down a transformation or function. Things like: (x,y)-->(2x,-y).

Isometry

A quick video explaining what isometry is in transformations. Not too interesting, but it may be on your quiz.

Images & Preimages In Transformations

Curious what the terms "image" and "preimage" mean in the context of transformations? Here you go.

Transformations & Reflections

This video explains what transformations are, and most useful, it shows you the step-by-step process for performing reflections! A key skill whether you're in geometry, or pre-calc trying to figure out if a function is even or odd based on it being reflectable across the x- or y-axis. Yes!

Transformations, Reflections, Isometry & Mapping Transformations & Reflections Images & Preimages In Transformations Isometry Mapping Rules

These videos tell you what translations, rotations, and dilations are, as well as showing you the steps to do reflect a shape or function across a line using graphical techniques.

How To Find X- & Y-Intercepts How To Find X-Intercepts and Y-Intercepts

By popular demand, this short video explains the process of finding x-intercepts and y-intercepts for any function. These are also known as "zeroes" of a function, and you'll see why by the end of this.

How To Find X-Intercepts and Y-Intercepts

This video covers the process of solving for the x- and y-intercepts of an equation, whether it's a line or a parabola. X-intercepts are also known as the "zeroes" of a function, if you're looking for that.

Are The Points Collinear?

This video introduces collinearity, then explains how to figure out whether x-y points are collinear or not, using both a graphing method and also an equations version for all of you algebra fans out there.

X-Intercept & Y-Intercept

This video introduces X-intercepts and y-intercepts, both what they are and how to find them.

Graphing Basic X-Y Shapes

This video introduces you to the concept of shapes on the X-Y plane, such as if they give you the center and radius of a circle and ask you to draw the graph. (If you need equations of circles and parabolas, try this.)

X-Y Graphs of Lines & Line Segments

This video covers the process of graphing points and then connecting them with a segment or a line. If you are in algebra and need equations of lines, click here.

Basic X-Y Graphs: X-Y Graphs of Lines & Line Segments Graphing Basic X-Y Shapes (Circles, Rectangles) X-Intercept & Y-Intercept Are The Points Collinear? How To Find X-Intercepts and Y-Intercepts segments, circles

If you're new to X-Y graphs, this is the place for you. We'll start with segments and lines without equations (for equations of lines from algebra, click here). Then we'll look at graphs of circles and rectangles, and x- and y-intercepts.

The Four Quadrants of the X-Y Plane

This video explains the four quadrants -- I, II, III, and IV -- as well as a few things you're supposed to know about them, such as whether x- and y-coordinates are positive or negative in each of the four quadrants.

Plotting Points on X-Y Plane

This video explains how to graph points on the X-Y plane, as well as some common pitfalls to avoid.

X-Y Plane Vocab

X-axis, Y-axis, the origin, and the four quadrants are all explained herein.

Find videos on your topic:

Transformations, Reflections, Isometry & Mapping
Transformations & Reflections
Images & Preimages In Transformations
Isometry
Mapping Rules

How To Find X- & Y-Intercepts
How To Find X-Intercepts and Y-Intercepts

Basic X-Y Graphs:
X-Y Graphs of Lines & Line Segments
Graphing Basic X-Y Shapes (Circles, Rectangles)
X-Intercept & Y-Intercept
Are The Points Collinear?
How To Find X-Intercepts and Y-Intercepts
segments, circles