The type of variable that is plotted on the X-axis.
What is an explanatory variable.
100
A point that has an unusual combination of data values, compared to the other points.
What is an outlier
100
The best way to establish causation.
What is a randomized experiment?
100
A straight line that describes who values of a quantitative response variable (y) are related, on average, to values of a quantitative explanatory (x) variable.
What is a regression line.
200
A point on a scatterplot that is that is represented by the y-axis.
What is a response variable.
200
An average of the product of the standardized values of the two variables.
What is correlation
200
A variable that is not the main concern of the study, but may be partially responsible for the observed results.
What is a confounding variable?
200
In this relationship if we know the x-value, we can determine the y-value exactly.
What is deterministic relationship?
300
The values of one variable tends to increase as the values of the other variable increases.
What is a positive association
300
This sign tells the direction and strength on a scale of -1 to 1.
What is "r"
300
A term sometimes used to describe variables that affect both the x and y variable and cause us to see an association.
What is a lurking variable?
300
In this relationship, there is variation from the average pattern and data points do not fall perfectly on the regression line.
What is a statistical relationship
400
When the values of one variable tends to decrease as the other variable increases in value.
What is a negative association.
400
"r"= 0.991, the correlation is...
What is strong?
400
True of False, the correlation "r" itself has no unit of measurement, it is just a number.
What is True.
500
When the scatterplot is very linear and is going upwards in direction.