**Outcome:
A single possible result from a random
process.**

Tossing 2 coins could result in 4 possible outcomes: HH, HT, TH, TT.

**Event: A set of outcomes. **

When tossing 2 coins, getting exactly one head is an event. There are two possible outcomes yielding this event: HT, and TH.

**Sample Space: The set of all possible outcomes.**

For a 2 coin toss s = { HH, HT, TH, TT }

**Disjointed Events: Events that can't happen simultaneously. **If 2 coins are tossed, they cannot be both HH and TT at the same
time.