Correlation

Question 1

The degree to which the change in one continuous variable is associated with a change in another continuous variable.

Answer 1

correlation

Question 2

Describes the strength and direction of an association between variables

Answer 2

correlation

Question 3

True or False

correlation only has numerical variables (continuous)

Answer 3

true

Question 4

a graph of plotted points that show the relationship between two sets of data and is a good way to visualize a correlation

Answer 4

scatter plot

Question 5

x variable increases
y variable increases

Answer 5

perfect postive

Question 6

x variable increases
y variable decreases

Answer 6

perfect negative

Question 7

variables are NOT constant

Answer 7

non linear correlation

Question 8

salary is an example of

linear or non linear

Answer 8

non linear

Question 9

statistics that quantify the relation between x and y in unit free terms

Answer 9

pearson correlation

Question 10

what are the non parametric counterparts of pearson correlation

Answer 10

kendall tau and spearmans rho

Question 11

strong or weak

near 1 =
near 0 =

Answer 11

near 1 = stronger
near 0 = weaker

Question 12

0.70 - 1.00

Answer 12

very strong association

Question 13

0.50 - 0.69

Answer 13

substantial association

Question 14

0.30 - 0.49

Answer 14

moderate association

Question 15

0.10 - 0.29

Answer 15

low association