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visits member for 3 years, 7 months
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7h
reviewed Leave Open Diophantine equations of a special form
7h
reviewed Leave Open Probability that a word contains at least 3 same consecutive letters?
7h
reviewed Leave Open Compute $P(X_1+X_2+\cdots+X_{100}<100)$ for Poisson random variables $X_i$
9h
comment Simple examples of math problems illustrating a basic epistemological point.
Well, there is the dialogue Meno, though perhaps Plato's sexiness score is on the low side.
12h
comment What is the probability that the writer is a British englishman?
Luckily, a detailed solution has been given in time, before the placing on hold. I would not have enjoyed doing it in a comment!
12h
comment What is the probability that the writer is a British englishman?
Let $V$ be the event the letter is a vowel, and $B$ be the event the person is British. We have $\Pr(V|B)=\frac{3}{6}$ and $\Pr(V|B')=\frac{2}{5}$. Now use the ordinary conditional probability machinery to find $\Pr(B|V)$.
13h
reviewed Leave Open Count ways to make total coin value
13h
revised Estimating the remainder for Mac Laurin's series
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13h
reviewed Reopen interpolating method
13h
reviewed Leave Open Inverse image of a set
13h
revised Finding Interpretations for First Order Logic
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13h
answered Estimating the remainder for Mac Laurin's series
13h
reviewed Leave Open Fractional Part of $ a^n $
13h
reviewed Leave Open Is the derivative of a differentiable function continuous a.e.?
13h
reviewed Leave Open Formulating the inductive hypothesis
13h
reviewed Leave Open Is a $n\times n$ symmetric matrix necessarely similarly to another symmetric matrix?
13h
reviewed Leave Open Let U;W be vector spaces over R with bases u1; u2; : : : ; um and w1;w
13h
revised Help solve this Problem
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14h
comment What is $1^k+2^k+\cdots+ (p-1)^k$ modulo $p$? (From Ireland and Rosen).
Thank you. The above answer is not a good example of beauty, the conceptual content is not high.
14h
answered Finding Interpretations for First Order Logic