Review: Multiplying each obs. by a CONSTANT results in new variance =

IELTS speaking part 2 topic card: Someone's room.

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IELTS Speaking test, part 2 topic - Something you wanted.

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IELTS speaking part 2 topic card: Someone who makes things by hand.

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A box contains 8 blue & 6 red socks. What is the number of ways that 2 socks can be drawn ...

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If u=a+ib is a complex #, then complex conjugate of u*=a-ib. ...

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1st/2 parts stat: SLR ∑ŷk = ∑yk where k=1,n

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review: prob stat Population variance vs sample variance

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JEE Main integral x^2/(a+bx)^2 dx

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Let B be the mx1 col. matrix [1/m ... 1/m]'. If A =[a1 ... am] is any row matrix. What is AB?

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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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2nd way: ∫cos(x)/√(sin^2(x)+4sin(x)+3) dx

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AP Calculus 3rd way: exp integral 1/(1+e^x) dx [withOUT u-sub]

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UT Austin: sq root integral ∫1/((√x) (1+ √x))dx

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9Screen Recording 2023-12-07 at 1.54.08 AM

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JHU: integral ∫t^3 e^(t^2) dt

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U Penn: Show that the following decomposition CANNOT hold ...

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Given that X Geo(p), find P(X=k) if

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3rd way: trig log integral ∫(a+ln(sin(x))/tan(x) dx

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A random variable X has the following parameters: E(X)=a & Var(X)=2a^2-1 a∈R

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Find f'(x) in terms of g'(x)

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