Michael Lugo
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 Apr17 answered How to evaluate $\log x$ to high precision “by hand” Apr8 answered Compute $\sqrt[7]{0.999}$ to three decimal places.(From Gelfand's Algebra text.) Mar12 answered $X,Y,Z$ are i.i.d $U(0,1)$. What is $P(X+Y+Z > 1)$? Feb25 answered Intersection of 8 spheres: find the volume Feb24 answered Is $\int_0^\infty x^{a-1} (1-x)^{b-1} e^{t-cx} dx$ integrable? Feb11 answered Find all perfect squares of the form aaa…a (n digits) bbb…b (n digits) Jan27 answered Value of lambda in poisson distribution Jan27 answered What is the coefficient of $(z-\pi)^2$ in Taylor series expansion of $\sin (z)/ (z-\pi)$ Jan21 answered How to show that $\sum_{k=1}^n k(n+1-k)=\binom{n+2}3$? Jan15 answered How to solve for the parameters of the Gamma distribution given x for the 50th and 90th percentiles? Jan12 answered Odds of anyone in a group getting picked twice in a row Jan9 answered Is there a reason of $\cos(11x)+\sin(11(x+1))\approx 0$ Jan7 answered Distinct ways three integers can sum to a constant Jan6 answered If a prime number is reversed, and then appended to itself, why is the result always a composite number? Dec19 answered how many ways to choose 3 coins? Dec18 answered Four dice, probability that difference of some outcomes is equal to others Dec16 answered Expected value of a die when decision to role again depends on previous outcome Dec11 answered Chance of having score of 63 Dec9 answered Why is this true? (sum of 2 uniform distributions) Dec8 answered Why is $\frac {1\cdot2\cdot3\cdot…\cdot n}{(n+1)(n+2)…(2n)}\le \frac 1 {n+1}$