For each of the following, indicate whether the data are cross-sectional or time series:
• Company quarterly profits
• Percentage of American adults who work full time
• Historical closing stock prices

Question

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The Answer of For each of the following, indicate whether the data are cross-sectional or time series:
• Company quarterly profits
• Percentage of American adults who work full time
• Historical closing stock prices

For Each of the Following, Indicate Whether the Data Are