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A telephone number contains 10 digits selected uniformly at random in the range from zero to nine with replacement. a.find the probability that a telephone number is even.
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2 votes
A telephone number contains 10 digits selected uniformly at random in the range from zero to nine with replacement.

a.find the probability that a telephone number is even.

User LatentDenis
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1/2 because 0,2,4,6 and 8 are even, while 1,3,5,7,9 are odd which will have 5 numbers in each set of odd and even.
User MGDroid
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