The following graph resulted when a researcher plotted the paired scores from two sets of data: Which of the following conclusions is justified from an examination of the graph?
a. The coefficient of correlation is close to .50.
b. The correlation between X and Y is negative and low.
c. The correlation between X and Y is positive and high.
d. A Spearman rho coefficient of correlation is appropriate for these data.
e. A Pearson's coefficient of correlation is not appropriate for these data.
Question 2
If a relationship between two variables is spurious, we conclude that it is
a. nearly always a cause and effect relationship.
b. partially regressed.
c. accounted for by another extraneous variable
d. not a statistically significant relationship.
e.
The nitrogen cycle. Numbers represent fluxes as 1012 g N per year (data from Schlesinger 1991, after
Lake position in the landscape and proportion of water received as groundwater (data from Webster et
Strength Gains: Based on Sets and Repetitions
Progression Graph
How to find the possible equations of a graph?
graph