How can the influence of a third variable be shown on a two-dimensional graph?
A) by allowing the position of the relationship line or curve to shift on the graph
B) by super-imposing the third variable on the two-dimensional graph
C) by drawing a third axis coming out of the two axes
D) by allowing the relationship to be nonlinear
Question 2
With the exception of during recessions, workers in Canada are eligible for unemployment benefits for about twice as long a period of time as workers in the United States. As a result,
A) frictional unemployment is higher, on average, in the United States than in Canada.
B) the opportunity cost of job search in Canada is lower than in the United States.
C) the average duration of unemployment is longer in the United States than in Canada.
D) the unemployment rate in Canada is usually higher than in the United States.
Shown eating. Cougars are ambush predators, feeding mostly on deer and other mammals.
Thyroid scan. The right image is the data from a thyroid scan, printed on a superimposed map of the
Conjunctivitis, with the characteristic “pinkeye” appearance. A yellow crusty exudate is also common
Darwin observed that tortoises on islands that are arid tend to have saddle-shaped shells, allowing
Graph this quadratic funcPLtion
An insertion sequence (IS), shown in purple