Question: Use the Ch08_Fact database shown in Figure P8.44. For problems with very large results sets, only the first several rows of output are shown in the following figures.
![1422_8.44.png](https://secure.tutorsglobe.com/CMSImages/1422_8.44.png)
Write a query to display the lowest average cost of books within a subject and the highest average cost of books within a subject. (Figure P8.67)
![1721_8.67.png](https://secure.tutorsglobe.com/CMSImages/1721_8.67.png)