Column (A): Notice that there are three columns in the unit normal table: (A), (B), and (C). The z scores are listed in column (A). Let's practice locating z scores. Below is a list of z scores. Locate each one in the unit normal table and write down the values you see in columns that indicate the proportion in the body (B), the proportion in the tail (C), and the proportion between the mean and z (D) across from it.