One ticket is drawn from a box containing tickets labelled with the numbers 1 to 16 inclusive.
(1) Write down the sample space U.
(2) List the outcomes in the following events:
- A = the ticket’s number is a multiple of 4
(3) - B = the ticket’s number is a perfect square.
(4) Draw a Venn diagram to illustrate the sample space U and the events A and B.