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12-06-2021
Mathematics

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3. TELEPHONE NUMBERS What is the probability that a 7-digit telephone number with the digits 5, 1, 6, 5, 2, 1 , and 5 is the number 550 - 5211 ?

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madhathatter madhathatter

12-06-2021

There are about 10 billion possible phone numbers so the chances are about 2 in a billion

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a 22 foot ladder is placed against a vertical wall of a building with the bottom of the ladder standing on level ground 16 feet from the base of the building. h