Question : 81) A scatter diagram A) a graph of a theoretical relationship : 1384134

 

81) A scatter diagram

A) is a graph of a theoretical relationship between two variables.

B) relates cross-sectional data only.

C) relates time series data only.

D) plots a series of observations, showing the relationship between two variables.

E) shows the dependence of one variable on another.

82) When it is said that variable A depends on variable B, then A is

A) a derivative of B.

B) proportional to B.

C) partially exclusive of B.

D) a function of B.

E) independent of B.

83) Consider the following equation: Y = 10 + 5X – . This equation is an expression of

A) a functional relation between X and Y.

B) two dependent variables in a functional relation.

C) two independent variables in a functional relation.

D) a functional relation in a schedule format.

E) a functional relation in a verbal format.

84) When considering how a family’s level of consumption changes in response to changes in its income,

A) income is the dependent variable and family consumption is the independent variable.

B) consumption is the dependent variable and income is the independent variable.

C) both of the variables are independent.

D) both of the variables are dependent.

E) there is no relationship between the variables.

85) The mathematical expression of a relationship between two or more variables is usually known as

A) a definition.

B) an assumption.

C) an observation.

D) a function.

E) a theory.

86) The statement “Y is a function of X” means that the

A) value of Y depends on that of X.

B) value of X depends on that of Y.

C) values of Y and X are the same.

D) values of Y and X are independent.

E) values of Y and X are related to some third variable.

87) When an increase in one variable is associated with an increase in a second variable, the two variables are

A) proportionally related.

B) inversely proportionally related.

C) positively related.

D) equivalent.

E) negatively related.

88) When an increase in one variable is associated with a decrease in a second variable, the two variables are

A) proportionally related.

B) inversely proportionally related.

C) positively related.

D) equivalent.

E) negatively related.

89) Negatively related variables change such that as the value of one variable

A) decreases, the value of the other variable remains the same.

B) increases, the value of the other variable increases.

C) increases, the value of the other variable remains the same.

D) decreases, the value of the other variable decreases.

E) increases, the value of the other decreases.

90) Positively related variables change such that as the value of one variable

A) decreases, the value of the other variable increases.

B) decreases, the value of the other variable decreases.

C) decreases, the value of the other variable remains the same.

D) increases, the value of the other variable decreases.

E) increases, the value of the other variable remains the same.

 

 

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