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Mathematics, 02.04.2020 03:33 uticabadgirl

A two-digit locker combination has two nonzero digits and no digit is repeated in the combination.

Event A=the first digit is less than 7.
Event B=the second digit is less than 7.

If a combination is picked at random with each possible locker combination being equally likely, what is P(B|A) expressed in simplest form?

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