Suppose x and y have each been assigned a list.  Write Pyth…

 Suppose x and y have each been assigned a list.  Write Python code that creates a new list w that contains each top-level element of x that occurs exactly once as a top-level element of y.  You can assume the lists have already been created and assigned to x and y, but you must create the new list w, as described above.

Use the following table to answer questions 18 and 19.  A ra…

Use the following table to answer questions 18 and 19.  A random sample was taken on the TSC campus.  The respondents were asked, “if you could own only one pet, what would it be?”.  The table portrays the results.  Find the probability, expressed as a decimal rounded to the nearest hundredth, that a randomly selected TSC student would not want to own a bird.