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Geometry/Most Common Digit from 1 to 1000

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Expert: Azeem Hussain - 3/12/2009


Question
Numbers are 1 to 1000. What is the most common number used in the series and what is the least used?  I can only think that 0 is used the most and all other numbers used the least.

Answer
Hi Michael!

I would say the least used digit is 0.  This is because there is only one double zero per hundred.  For example, the numbers 110, 111, 112, 113... 119 are used, but 000, 001, 002... 009 are not.  For that reason, 0 is used the least.

Digits 2 through 9 are used equally, but the digit 1 has one more occurrence: in the number 1000.

Thanks for asking,
Azeem

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Azeem Hussain

Expertise

I can answer mostly any kind of question dealing with of Math 536 and below, my forte being in parabolic functions and analytical geometry.

Experience

Drop-in tutor at Champlain College since 2010. I am neither a professor nor a teacher of this subject. I am merely a student who is good at mathematics and enjoys being of service to his community. I frequently tutor people in math and the results are usually great.

Education/Credentials
Presently enrolled in Materials Engineering at McGill University. Diploma of Collegiate Studies; Pure and Applied Science, Champlain College Saint-Lambert. Diploma of Secondary Studies from Chambly Academy High School. Being a Quebecer, I am fluent in English and French and can respond to questions easily in both languages.

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