Chapter 4: Describing the Relation Between Two Variables Flashcards
1
Q
predictor/explanatory/independent variable
A
x-variable
2
Q
response variable
A
y-variable
3
Q
scatter diagram
A
graph showing the relationship between two quantitative variables
4
Q
linear correlation coefficient
A
measure of the strength and direction of the linear relationship between 2 quantitative variables
5
Q
residual
A
observed - expected
6
Q
least squares regression line
A
used to approximate the best fit line for a scatterplot
7
Q
continency table
A
table relating two categories of data
8
Q
marginal distribution
A
frequency or relative frequency distribution of either the row or column variable of the contingency table
