Correlatiom And Regressiom Flashcards
1
Q
Does correlation always equal causation
A
No
2
Q
What is PMCC
A
Product Moment Correlation Coefficient (or R)
This measures the strength of correlation in a value between -1 and 1
3
Q
When interpreting PMCC what must you always refer to
A
The actual variables
4
Q
What are the limitations of PMCC
A
Only measures linear relationships
Outliers can alter the value of r
5
Q
Equation of a regression line
A
y=a+bx
a: y intercept
b: gradient
6
Q
What must a function be?
A
Mapping one to one or many to one
