For each of the following, list the sample space and tell whether you think the events are

Question:

For each of the following, list the sample space and tell whether you think the events are equally likely:
a) Roll two dice; record the sum of the numbers.
b) A family has 3 children; record each child's sex in order of birth.
c) Toss four coins; record the number of tails.
d) Toss a coin 10 times; record the length of the longest run of heads.