The Excel file Auto Survey contains a sample of data about vehicles owned, whether they were purchased new or used, and other types of data. Use the Descriptive Statistics tool to summarize the numerical data, find the correlations among each of the numerical variables, and construct PivotTables to find the ­average miles/ gallon for each type of vehicle, and also the average miles/ gallon and average age for each type of new and used vehicle. Summarize the observations that you can make from these results.