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Variability or spread of a distribution. Whey we need it!
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CBSE 2000 Hindustan: integral (1+tan(x))/(x+log(sec(x)) dx
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What does SS tell us about a set of data? Under what circumstances will the value of SS equal 0?
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U North Texas Integration Bee 2nd way: x^2/√(x-1) dx
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Columbia U: 1st way integral ∫√(x^2-9)/x^4 dx
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Swinburne U 2nd way: e^(-e^x) e^x dx
2nd/2 parts: sum Find the sum 2,3,14,24,37,... nth term
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2nd/2ways: count perm Show P(n,n)=P(n,n-1)
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U Penn: Evaluate trig integral ∫(sin^2(x) -cos^2(x))/(sin(x)-cos(x))^2 dx
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UT Austin: trig integral ∫cos(√x)/((√x) sin^2(√x)) dx
A cubical die, numbered 1 to 6 is weighted so that a six is twice as likely to occur as any other #.
Show integral x/(x^2+a^2) dx = -1/(2(x^2+a^2))
JHU: sq root integral ∫e^√x dx
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#24 2010 MIT Integration Bee Qualifying Exam
Lamar U: trig integral ∫sin(13z) sin(4z) dz