gavinksong Posted October 17, 2014 Report Share Posted October 17, 2014 This is a variant of BMAD's recent post on the probability of choosing a natural number with a 1 in the digits. From the set of all natural numbers... 1) What is the probability of choosing a natural number whose digits sum to an even number? 2) What is the probability of choosing a natural number whose digits sum to a number divisible by N? Quote Link to comment Share on other sites More sharing options...
0 DeGe Posted October 17, 2014 Report Share Posted October 17, 2014 0.5 the digit sum will be either odd or even with equal probability 1/N All numbers have equal probability Quote Link to comment Share on other sites More sharing options...
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gavinksong
This is a variant of BMAD's recent post on the probability of choosing a natural number with a 1 in the digits.
From the set of all natural numbers...
1) What is the probability of choosing a natural number whose digits sum to an even number?
2) What is the probability of choosing a natural number whose digits sum to a number divisible by N?
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