Determine whether each of the following pairs of events is independent:
a. Rolling a pair of dice and observing a “2” on one of the dice and having a “total of 10”
b. Drawing one card from a regular deck of playing cards and having a “red” card and having an “ace”
c. Raining today and passing today’s exam
d. Raining today and playing golf today
e. Completing today’s homework assignment and being on time for class