Question

In a scatterplot, which variable( x or y) is the dependent variable ?

In a scatterplot, which variable

( x or y) is the independent variable ?

Fill in the blank: in a negative correlation, when y increases,    x _______

Fill in the blank: in a positive correlation, when y increases,      

x____________

Why do we study correlation ?

1. to detect relationships
2. to make predictions
3. to show trends
4. all of these

e. none of these

TRUE-FALSE

IN A SCATTERPLOT, IT IS NOT APPROPRIATE TO CONNECT THE POINTS

TRUE-FALSE

THE LOWEST VALUE THAT “r” can represent is 0

TRUE-FALSE

THE VALUE OF “r” is NOT sensitive to outliers in the data set

Answer 1

In a scatterplot, which variable( x or y) is the dependent variable ? Y is dependent variable.

In a scatterplot, which variable

( x or y) is the independent variable ? X is independent variable..

Fill in the blank: in a negative correlation, when y increases,    x _______decreases.

Fill in the blank: in a positive correlation, when y increases,      

x____________increases.

Why do we study correlation ? Ans. To detect relationships.

TRUE-FALSE

IN A SCATTERPLOT, IT IS NOT APPROPRIATE TO CONNECT THE POINTS. . .. TRUE.

THE LOWEST VALUE THAT “r” can represent is 0. FALSE BECAUSE -1<r<1.

THE VALUE OF “r” is NOT sensitive to outliers in the data set.. FALSE