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The following two-way table of counts summarizes whether respondents smoked or not and whether they had ever divorced or not for persons in the 1991-1993 General Social Surveys who had ever been married.
a. Among those who smoked, what percentage has ever been divorced? Is this value a row percentage or a column percentage?
b. Among those who have ever been divorced, what percentage smoked? Is this value a row percentage or a column percentage?
c. What percentage of the overall sample did not smoke and had not ever been divorced?
d. Determine a complete set of row percentages.
e. Briefly explain whether the percentages found in part (d) indicate that there is an observed relationship between smoking habits and whether persons ever married had ever divorced or not.
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This process is sometimes used as a model for random noise.- Find the time-varying autocorrelation function. - Find the PSD of this process.
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