Lyrics © Mary McLellan
may sing to the tune of Adele's "Hello"
Slope.Varies.
It’s the standard deviation of the slope
You need to know
Slope.Varies.
It’s the standard deviation of the slope
You need to know
If you sample many times
I’d expect the slope you find
Of the relation between X and Y
To vary this much
On average over time.
If you sample many times
I’d expect the slope you find
Of the relation between X and Y
To vary this much
On average over time.
Lyrics © Mary McLellan
may sing to the tune of "Play That Funky Music" by Wild Cherry
Correlation coefficient
Represented by the R!
Correlation coefficient
The variable that you use to
represent it is the r
Repeat
Lyrics © Mary McLellan
may sing to the tune of "Billie Jean" by Michael Jackson
Standard Deviation
Standard Deviation
Of residuals
Average amount that the actual Y
(the actual Y value point- ooooh)
Varies from what’s predicted to
Become
Varies from the predicted Y
Repeat
Lyrics © Mary McLellan
may sing to the tune of "Hit Me With Your Best Shot" by Pat Benatar
You can add, subtract, multiply, divide…
Well you can even switch the x and y
Akk but negative transformations fly...
And the r doesn’t change
You can add, subtract, multiply, divide…
Well you can even switch the x and y
Akk but negative transformations fly...
And the r doesn’t change
Lyrics © Mary McLellan
may sing to the tune of Taylor Swift's "Shake it Off"
X-bar is the mean of X
Y-bar is the mean of Y
And the (mean, mean) point is always
On the line, on the line
Repeat
Lyrics © Mary McLellan
may sing to the tune of Miley Cyrus' "Wrecking Ball"
Interpret the Y-intercept
It happens when the X is Zero
The predicted Y is this
And it often does not make sense
Repeat
Lyrics © Mary McLellan
may sing to the tune of "The Addams Family Theme Song"
Interpret the slope (snap, snap)
Interpret the slope (snap, snap)
Interpret the slope, interpret the slope, interpret the slope
For every 1 increase in the X
The predicted Y, it does this…
Interpret the slope (snap, snap)
Interpret the slope (snap, snap)
Interpret the slope, interpret the slope, interpret the slope
Repeat
Lyrics © Mary McLellan
may sing to the tune of "Blue Suede Shoes
There is a strong
There is a weak
Positive or negative, linear
Correlation between X and Y
Linear between X and Y
Repeat
Lyrics © Mary McLellan
may sing to the tune of "Frosty the Snowman"
Coefficient of determination
The percent of variation that is found in the Y
Coefficient of determination
The percent of variation that is found in the Y
It can be explained by the changes in the X
or it can be explained by the model itself, Oh
Coefficient of determination
The percent of variation that is found in the Y
Repeat