(Solution) - The number of marriages in the United States is given -(2025 Original AI-Free Solution)
Paper Details
The number of marriages in the United States is given in Table P-13. Compute the first differences for these data. Plot the original data and the difference data as a time series. Is there a trend in either of these series? Discuss.
Table P-13
![](http://www.solutioninn.com/image/images9/628-M-S-L-R (5710).png)