Relationships

Question 1

Side-by-side Boxplots are good

Answer 1

for examining
the relationship between a quantitative and a
categorical variable

Question 2

Two-way tables

Answer 2

are best for examining the
relationship between two categorical variables

Question 3

Scatterplots are best for

Answer 3

Scatterplots are best for examining the
relationship between two quantitative
variables

Question 4

An “outlier in x”

Answer 4

An “outlier in x” is a data point where the x-
coordinate deviates from the values of the
explanatory variable observed for other
individuals in the sample

Question 5

“outlier in y”

Answer 5

An “outlier in y” is a data point where the y-
coordinate deviates from the values of the
response variable observed for other
individuals in the sample

Question 6

The coefficient of correlation

Answer 6

The coefficient of correlation is used to measure the
direction and strength of the linear relationship
between two variables