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Feb
2
reviewed No Action Needed Integral transform involving square root
Feb
2
reviewed Close Find the closed form for the double sum $ \sum_{1\leq j \leq k \leq n }3^k=\sum_{j=1}^n \sum_{j=k}^n 3^k$
Feb
2
reviewed Leave Open Finding the limit of $\frac{1}{x}\left(\frac{1}{\arctan x}-\frac{1}{x}\right)$ when $x\to 0$
Feb
2
reviewed Leave Open Mensuration problems
Feb
2
reviewed Close how large a sample must be drawn-to make the probability $.95$ that a $90$ percent confidence interval for $\mu$ will have length less than $\sigma/5$
Feb
2
reviewed Close Give a cubic polynomial, defined on the open interval (-5,4), which reaches both its min and max values
Feb
2
reviewed Leave Open Maximum likelihood estimator of $\lambda$ and verifying if the estimator is unbiased
Feb
2
reviewed Close At least $P(m, n - 1) = {{m!}\over{(m - n+1)!}}$ surjective functions from $[m]$ to $[n]$?
Feb
2
reviewed Close Solving integration equation with binomial expression using gamma function
Feb
2
reviewed Close Determining next hash
Feb
2
reviewed Leave Open Prior that incentives dissimilarity of 2 parameters
Feb
2
reviewed Leave Open Reciprocal of the primes proof -Euler product formula
Feb
2
reviewed Close Number of Distinct Roots of Trig Equation
Feb
2
reviewed Leave Open If there is a bijective function from A to B, then prove that |A| = |B|
Feb
2
reviewed Close Expectation and Variance
Feb
2
reviewed Close If x is in the derived algebra, show that Tr(ad a)=0
Feb
2
reviewed Leave Open CDF of Sum of a Guassian and Exponential random varaible
Feb
2
reviewed Close Why is the solution to $\sqrt{6-5x}=x$ only $x=1$ and not $x=-6$?
Feb
2
reviewed Close Problematic square root
Feb
2
reviewed Close Formula $\sqrt[x]a -\sqrt[x] b$