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What is the probability that seven-digit phone number has one or more repeated digits ? The leading...

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Question

Statistics

What is the probability that seven-digit phone number has one ormore repeated digits ?

The leading number can not be zero (0).

Answer & Explanation Solved by verified expert
4.5 Ratings (711 Votes)
We have to find the probability that the sevendigit phonenumber has one or more repeated digitsWe can do this also in this wayPone or more repeated digits 1 Pno digitsrepeatedLet us first find    See Answer
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