Dialing a telephone an old man forgets the last two digits only that these are different dialed .... VIDEO
Dialing a telephone an old man forgets the last two digits only that these are different dialed at random.
\( \mathrm{P} \)
The probability that the number is dialed correctly is
(1) \( 1 / 45 \)
(2) \( 1 / 90 \)
(3) \( 1 / 100 \)
(4) none of these
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