INTERACTIVE STATISTICS · ENDLESS DISCOVERY

Understand
Correlation.

See relationships. Understand the numbers.
Explore your data.

A RELATIONSHIP, REVEALED
r = 0.87
Positive. Strong. Worth exploring.
Variable Y versus Variable XFocus or hover a data point to inspect its coordinates. Potential outliers use diamond markers. -2.7-8.76.9316.514.726.126.435.738.1Variable XVariable Y
SCROLL TO SEE THE CONNECTION
BEYOND THE NUMBERA visual introduction, in four ideas.
01 / DIRECTION

Together.

When X rises, Y tends to rise. This is a positive relationship.

01 / 06
01 / DIRECTION

No straight story.

A cloud of points. No linear trend. But one number is never the whole picture.

02 / 06
01 / DIRECTION

In opposite directions.

When X rises, Y tends to fall. Negative describes direction, not quality.

03 / 06
02 / STRENGTH

A hint of a pattern.

A subtle tendency is still a tendency. Look at how loosely the points gather.

04 / 06
02 / STRENGTH

Coming into focus.

As the points settle around a line, the linear association becomes stronger.

05 / 06
02 / STRENGTH

A clearer connection.

A tight pattern. A stronger association. Context still determines what it means.

06 / 06
DIRECTIONr = 0.87
Variable Y versus Variable XFocus or hover a data point to inspect its coordinates. Potential outliers use diamond markers. -2-125.30.312.512.519.824.82737Variable XVariable Y
03 / INTERPRETATION

One number.
A whole relationship.

0.87

Strong positive correlation.

A useful summary. Never a substitute for seeing your data.
Strength depends on context, sample size and the shape of the relationship.

Find your number
04 / PERSPECTIVE

Connected.
Not necessarily
cause and effect.

Ice cream sales and swimming rise together.
The explanation might be the weather.

Understand the difference
YOUR TURN

What’s the story
in your data?

Analyze Your Data

No account. No upload to a server. Just discovery.