Which triangle is a 30°-60°-90° triangle?
1 answer:
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If two events are disjoint (i.e. mutually exclusive) they cannot both occur and so we can determine probabilties by simple addition:
A more complete answer would use a joint probability table but that's difficult to type out/format correctly here.
A more complete answer would use a joint probability table but that's difficult to type out/format correctly here.