If the probability of an event A is 7/3, what are the odds the event does NOT happen?

Answer 1

Probability of an even can never be greater than 1, and never less than 0

IF P(A) = 3/7, then P(~A) = 1-3/7 = 7/7 - 3/7 = (7-3)/7 = 4/7 = about 57.1% chance A won't happen

"7/3" has to be a typo or error of some kind.

For any event A, 0< P(A) <1