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5
votes
Expectation of length of a confidence interval
probability
confidence-interval
self-study
asked Nov 14 '11 at 7:39
stats.stackexchange.com
5
votes
Proving integration identity
calculus
integral
asked Sep 25 '11 at 5:40
math.stackexchange.com
5
votes
Approximation of first derivative?
calculus
numerical-methods
asked Oct 14 '11 at 21:44
math.stackexchange.com
5
votes
If $a^3+b^3 = c^3+d^3$ and $a^2+b^2 = c^2 + d^2$, then $a + b = c + d$
algebra-precalculus
asked Nov 23 '11 at 6:01
math.stackexchange.com
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