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Which of the following graphical representations can be used to show the distribution

Which of the following graphical representations can be used to show the distribution of a household's income, in terms of percentages, among the various categories of expenses most appropriately?

A) A bar chart

B) A pie chart

C) A histogram chart

D) A time-series graph

2) Which of the following statements is true?

A) A bar chart has many limitations in comparison to pie charts.

B) A bar chart does not allow for the comparison of a single variable across many segments.

C) A bar chart can only be used to represent independent variables.

D) A bar chart indicates the frequency of a variable by using rectangles of different heights or lengths.

3) An independent variable:

A) cannot be measured.

B) cannot be represented on a bar chart.

C) is manipulated by the experimenter in an experiment.

D) in an experiment is determined by the other variables.

4) A variable that is potentially affected by an experimental treatment is referred to as a(n):

A) omitted variable.

B) independent variable.

C) dependent variable.

D) compulsory variable.

5) A scatter plot:

A) is the same as a pie chart.

B) shows how a variable changes across time.

C) shows the relationship between two variables at a point in time.

D) represents the frequency of a variable being observed.

6) On a line chart, the income of a consumer is measured along the horizontal axis, and his consumption is measured along the vertical axis. The slope of the line is equal to:

A) change in consumption plus change in income.

B) change in consumption minus change in income.

C) change in consumption multiplied by change in income.

D) change in consumption divided by change in income.

7) The slope of the line on a line chart measures the rate of change in:

A) only the independent variable.

B) only the dependent variable.

C) the dependent variable as the independent variable changes.

D) the independent variable as the dependent variable changes.

8) As the number of advertisements of a firm increases from 100 to 500, its sales increases from $1,000 to $10,000. If this information is plotted on a line chart, the slope of the line equals:

A) $20.

B) $0.044.

C) $22.5.

D) $30.33.

Mar 14 2020 View more View Less

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