Relationship Between Two Quantitative Variables

What would be the correlation be between study time and test grades?

• positive correlation

• negative correlation

• no correlation

• cannot be determined

When you check your scatter plot to see if it is straight (linear), curved, or any other pattern you are looking at _________

• Form

• Direction

• Outlier

• Strength

numeric value that assesses the strength of the linear relationship between two quantitative variables in a set of bivariate data

• inequality notation

• Correlation coefficient (r-value)

• x-intercept

• y-intercept

data for two related (numeric) variables that can be represented by a scatterplot

• Correlation coefficient (r-value)

• Linear equation in two variables

• Quantitative bivariate data

• Continuous function

a relationship or correlation between two measurable variables

• association

• causation

• correlation

• range

description of the linear relationship between the two variables in bivariate data

• correlation

• causation

• zeros

• domain

a linear relationship between two variables, x (independent) and y (dependent), that always has a constant, unchanged ratio, k, and can be represented by y = kx

• linear function

• inequality notation

• Direct variation

• continuous function

a relationship with a constant rate of change represented by a graph that forms a straight line

• Linear equation in two variables

• no linear correlation

• positive linear correlation

• negative linear correlation

a relationship with a constant rate of change represented by a graph that forms a straight line in which each element of the input (x) is paired with exactly one element of the output (y)

• continuous function

• linear function

• slope of a line

• association

trend of points to ascend from left to right

• negative linear correlation

• positive linear correlation

• linear correlation

• no linear correlation