SOLVED

11) A time series graph A) shows how a variable changes over time. B) uses bars rather than lines. C) shows points in a scatter diagram. D) is similar to a cross-section graph because both can show trends over time. E) is in the shape of a pie. 12) A steep slope in a time series graph means the variable is A) high. B) falling. C) rising or falling quickly. D) rising or falling slowly. E) very close to its trend point. 13) Which type of economic graph reveals trends in data? A) cross-section graph B) time-series graph C) scatter diagram D) Answers A and C are correct. E) Answers A, B, and C are all correct. 14) A time series graph A) shows how a certain variable changes over time. B) uses bars rather than lines. C) shows points that are scattered. D) depicts a series of good economic times a nation had. E) is not useful if the goal is to determine a variable’s trend. 15) A time-series graph displays the price of gold. The slope of the line is negative for periods when the A) price of gold is falling. B) price of gold is rising. C) quantity of gold is falling. D) price of gold is low and not changing. E) price of gold fluctuates. 16) A graph shows the wage rate of factory workers. The slope of the line is positive for periods when the wage rate is A) falling. B) rising. C) high and not changing. D) low and falling. E) high and falling. 17) A trend is A) a measure of closeness on a scatter diagram. B) a general tendency for a variable to rise or fall. C) the maximum value of a variable. D) the minimum value of a variable. E) the difference between the maximum value of a variable and the minimum value of the variable. 18) A time series graph reveals whether there is a ________ , which represents ________. A) trend in a variable; a general tendency for the variable to rise or fall B) relationship between two variables; a cross-section relationship C) trends in two variables; unrelated variables D) relationship between two variables; a trend in a variable E) cross-section relationship; a general tendency for the variables to rise or fall 19) Trend refers to A) the scale used on the x- and y-axes. 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. E) the difference between the maximum value of the variable and the minimum value of the variable. 20) In the above figure, the diagram shows A) a downward trend in x. B) an upward trend in x. C) a scatter diagram. D) a two-variable scatter diagram. E) a cross-section graph between x and time.