Question Details

Which type of graph is used to identify trends 



1) Trend refers to
A) the scale used on the x- and y-coordinates.
B) increases but not decreases of a variable.
C) decreases but not increases of a variable.
D) a general tendency for a variable to rise or fall.
2) Which of the following is TRUE regarding a trend?
I. A cross section graph shows trends.
II. A time-series graph shows trends.
III. A scatter plot shows trends over time.
A) I
B) II
C) I and II
D) II and III

3) Which type of graph is used to identify trends ?
A) time-series
B) scatter diagram
C) cross-section
D) None of the above answers is correct.

4) A graph shows the wages of factory workers. The slope of the line is positive for periods when
the wage rate is
A) falling.
B) rising.
C) high but not rising any higher.
D) low.

5) On a time-series graph with a ratio scale,
A) the slope of the line is negative when the level of the variable is rising.
B) the same distance along the vertical axis measures different amounts of the variable.
C) time is plotted on the vertical axis rather than the horizontal axis.
D) it is impossible to determine a trend.

6) You believe that the total amount of goods produced in the United States has generally
increased over the years. In a time-series graph illustrating the total amount produced, you
expect to find
A) an upward trend.
B) no relationship between time and the amount of goods produced.
C) an inverse relationship between time and the amount of goods produced.
D) a linear relationship.



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