While an analyst considers the time plot of the closing value of the Dow Jones Industrial Average, he notices a trend. This means he sees:
A) a persistent long-term rise or fall.
B) due to nonresponse.
C) due to confounding.
D) a pattern in a time series that repeats itself at known regular intervals of time.
E) the margin of error.

Question

Quizplus · Accepted Answer

A trend in a time plot indicates a persistent long-term rise or fall. Nonresponse, confounding, repeating patterns, and margin of error are not related to trends.

While an Analyst Considers the Time Plot of the Closing