Function os.wait raises a(n)________exception if there are no children.

For table II, compute support, the interest measure, and the ? correla- tion coefficient for the association pattern {A, B}. Also, compute the confidence of rules A ? B and B ? A.

Consider the contingency tables shown in Table 6.6.

Which of the following is NOT a hint to improve the organization of your files?

A. Always store your data in a folder. B. Try to store files directly in the folders that contain program modules for your application software. C. Use descriptive names for files and folders. D. Create subfolders to group files by project or by type.