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Mathematics
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Arby

I was a math teacher for many years so didn't do much math, mostly teaching. I'm getting back into it for fun. :D

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  • Thailand
  • Member for 2 years, 7 months
  • 198 profile views
  • Last seen Dec 7 '17 at 23:49

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Top posts (34) All Questions Answers | Votes Newest

5 Ways to arrange a word such that relative order of vowels and consonants does not change Apr 11 '17
3 probability (Bayes' rule) May 9 '17
3 How many can the donuts be distributed among the staff? Mar 21 '17
2 How many ways can we choose $20$ letters from a collection of $9$ b’s , $8$ h’s, $10$ s’s? Apr 1 '17
2 Probability of Chosing a King Next Apr 5 '17
2 Calculating pmf of different coins Apr 5 '17
2 How can you tell the difference between “simple” and “compound” events? Mar 11 '17
2 Is there an easy way to multiply two 2-digit numbers that have flipped digits? Mar 1 '17
2 Unknown number of rows below staircase May 10 '17
2 If two dice are thrown $5$ times, what is the probability of obtaining the same number on both dice $2$ times? Apr 16 '17
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