correlation Flashcards
1
Q
what is causal relationship
A
When one variable causes the other
1
Q
How to describe correlation
A
Weak positive correlation
Weak negative correlation
Strong positive correlation
Strong negative correlation
2
Q
which axis does independent variable and dependent variable go
A
independent on x axis
dependent in y axis
3
Q
what is bivariate data
A
pair of values for two variables
4
Q
Exam question - Why is a regression line used here
A
it suggest that there is a linear relationship between y and x
5
Q
what is extrapolation
A
making prediction based on data outside the range
6
Q
which variable can you make prediction for, with regression line
A
only dependent variable can be predicted - y axis
