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16h
revised Erin rolls 4 four-sided dice all at once, then can roll a subset of her choosing a 2nd time. What is the probability of getting all the same number?
added 440 characters in body
18h
revised Dice Roll Probabilities
deleted 24 characters in body
19h
revised Dice Roll Probabilities
added 193 characters in body
22h
revised Expansion of factorial of a natural number as a summation
added 252 characters in body
2d
revised Variance of subset vs total variance
added 197 characters in body
2d
revised Non-standard model of $Th(\mathbb{R})$ with the same cardinality of $\mathbb{R}$
added 116 characters in body
Jul
1
revised I need to prove the following property of the binomial coefficient…please Help!
added 6 characters in body
Jun
30
revised Let X and Y be a random variables with $E(X) = 5$, $Var(X) = 30$, $E(Y ) = -􀀀5$, $Var(Y ) = 10$ and $Cov(X, Y ) = 7$
added 77 characters in body
Jun
30
revised Convergence of $\int_0^\infty x^\alpha \cos e^x \, dx$
added 6 characters in body
Jun
30
revised Prove that to any three numbers positive integers
added 56 characters in body
Jun
30
revised Trouble finding the expected value of a random variable
added 103 characters in body
Jun
29
revised Trouble finding the expected value of a random variable
added 1 character in body
Jun
29
revised Primitive roots of unity
added 34 characters in body
Jun
29
revised Find the SA of a torus
added 43 characters in body
Jun
29
revised Find the SA of a torus
added 389 characters in body
Jun
28
revised Find out a process to generate pairs of distinct positive integer $m$, $n$ with $\phi(m) = \phi(n)$.
added 127 characters in body
Jun
27
revised How many Schedules possible with given set of Transactions? Given that total ordering of operations in a transactions is there.
added 27 characters in body
Jun
27
revised How many Schedules possible with given set of Transactions? Given that total ordering of operations in a transactions is there.
added 473 characters in body
Jun
26
revised How do you proof that F is a distribution function, when x > 0
added 31 characters in body
Jun
26
revised How do you proof that F is a distribution function, when x > 0
added 31 characters in body