c.)
When a coin is tossed, there is a probability of 1/2 getting a tail.
The word INDIANAPOLIS has 12 letters in total, with 2 Ns. This gives us a probability of 2/12.
Therefore:
d.) P(heads, then D or I)
When a coin is tossed, there is a probability of 1/2 getting a heads).
There would be a probability of 5/12 when getting a D or an I.
Therefore: