Bivariate data quiz
I measure a response variable y at several values of the explanatory variable x, which is “time of measurement.” Plotting log y against time of measurement looks approximately like a straight line with a positive slope. I can conclude that:
|
|
A. |
the rate of growth of y is positive but slowing down. |
| |
 |
B. |
since only logs of numbers greater than one are positive, the line best fitted to the plot of y against time would have to have slope greater than one. |
|
|
C. |
an exponential curve would fit well to a plot of y against time. |
|
|
D. |
I should also take the log of the time variable. |
|
|
E. |
I should have taken the log of the time instead of log y. |
