Question : 31) To show the values of an economic variable for : 1238587

 

31) To show the values of an economic variable for different groups in a population at a point in time, it is best to use a

A) scatter diagram.

B) time-series graph.

C) linear graph.

D) cross-section graph

E) trend-section diagram.

32) A graph that shows how the amount of advertising expenditure differs among various industries can be shown

A) by a cross-section graph.

B) by a time-series graph.

C) as a trend.

D) by a scatter diagram.

E) by a trend-section graph.

33) A linear relationship

A) when graphed is a straight line.

B) when graphed is a line whose slope changes.

C) can be a positive or a negative relationship.

D) Both answers A and C are correct.

E) Both answers A and B are correct.

34) A positive relationship exists between two variables if

A) one variable has “positively” no effect on the other variable.

B) a decrease in one variable is associated with an increase in the other variable.

C) a decrease in one variable is associated with a decrease in the other variable.

D) an increase in one variable is associated with both a decrease and an increase in the other variable.

E) None of the above answers is correct.

35) If two variables are positively related, then

A) one variable causes the other.

B) an increase in one variable is accompanied by a decrease in the other.

C) an increase in one variable is accompanied by an increase in the other.

D) they change together, but not necessarily in the same direction.

E) neither variable can be positively related to any other variable.

36) As a person increases his or her caloric intake, the person’s weight increases, ceteris paribus. The relationship between the person’s caloric intake and the person’s weight is an example of

A) unrelated variables.

B) a positive relationship.

C) a negative relationship.

D) a single point on a graph.

E) a trended relationship.

37) If there is a positive relationship between two variables,

A) the graph of the relationship will be upward sloping.

B) the graph of the relationship will be downward sloping.

C) the slope of the line graphing the relationship will be negative.

D) Both answers A and C are correct.

E) Both answers B and C are correct.

38) If the change in y = 10 and the change in x = 3, there is

A) a positive relationship between y and x.

B) a negative relationship between y and x.

C) an independent relationship between y and x.

D) no relationship between y and x.

E) a +0.33 relationship between the two variables.

39) Whenever people’s incomes increase, they buy more guitars. Hence a scatter diagram shows that the relationship between income and guitars purchased is

A) a positive relationship.

B) a linear relationship.

C) a negative relationship.

D) some sort of relationship, but whether it is positive or negative depends on whether income is plotted on the vertical or horizontal axis.

E) a U-shaped relationship.

40) Which of the following statements is correct?

A) When a line slopes downwards moving to the right, the variable measured on the x-axis and the variable measured on the y-axis are directly related.

B) When a line slopes upwards moving to the right, the variable measured on the x-axis and the variable measured on the y-axis are directly related.

C) The higher the temperature, the more ice cream people consume. Thus the temperature and ice cream consumption are inversely related.

D) If two variables are directly related, a graph of the two variables has a negative slope.

E) None of the above statements is correct.

 

 

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