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 Apr22 accepted Understanding two sided t-test Apr22 comment Understanding two sided t-test Bruce I really appreciate your explanation, thanks for your time. Apr21 comment Understanding two sided t-test can you explain why this is a two-sided test by looking at the hypothesis? should I not reject if t < 2.262 ? I am very confused :( Apr21 accepted Frequency of the most frequent word using Zipf's law Apr21 comment Reduction from Hamiltonian cycle to Hamiltonian path I am confused, is this valid? Apr20 revised Frequency of the most frequent word using Zipf's law added 128 characters in body Apr20 comment Frequency of the most frequent word using Zipf's law Thanks for your answer, I am a bit confused from your answer. Why is my reasoning incorrect? Why do you sum all the 1/k ? And how can the most frequent word appear 0.0869 times? I think my gap of knowledge goes beyond this. I have a feeling I confuse frequency with occurrence. But I still do not understand where you bring the new summation in Apr20 asked Frequency of the most frequent word using Zipf's law Apr20 asked Understanding two sided t-test Apr20 comment Simplifying a formula with summation Ok, that is what I was thinking. The average consider it to be a constant, since once I calculate $R_u$ is always calculated. So What I am actually thinking is to subtract $R_u$ to everything in advance Apr20 asked Simplifying a formula with summation Jan26 accepted Does infinite tableau branch mean satisfiable formula? Jan13 asked Why $d(x) + d(y) \le n$ when proving Mantel's theorem Oct4 awarded Popular Question Jul30 awarded Notable Question Jul2 awarded Curious May16 comment Shape of contour of Laplacian Thanks a lot, I finally got what the question aimed at, I was very close! May16 comment Shape of contour of Laplacian should be into a circle? May16 asked Shape of contour of Laplacian May4 asked Does infinite tableau branch mean satisfiable formula?