Mathematics, 15.07.2019 11:30, hit89

Atwo-digit locker combination is made up of nonzero digits and no digit is repeated in any combination. event a= the first digit is 1 event b= the second digit is even if a combination is picked at random with each possible locker combination being equally likely, what is p(a and b) expressed in simplest form?

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Atwo-digit locker combination is made up of nonzero digits and no digit is repeated in any combinati...