Sa7uasugabbylorinMa Sa7uasugabbylorinMa

04-04-2017
Mathematics

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How many bit strings (strings of 0's and 1's are there of length 7 that have more 0's than 1's?

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LammettHash LammettHash

04-04-2017

Any string containing at least 4 zeros and 3 ones will count. The total number is then

[tex]\dbinom74+\dbinom75+\dbinom76+\dbinom77=64[/tex]

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