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ParthKohliBest ResponseYou've already chosen the best response.0
\(x \times x\) I think that's what you mean.
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
mathematical form?
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.0
Hmm. Similarly: \( \color{Black}{\Rightarrow x^3 = x \times x\times x}\) \( \color{Black}{\Rightarrow x^4 = x \times x \times x \times x}\)
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.0
'Mathematical form' is still ambiguous.
 one year ago

Raja99Best ResponseYou've already chosen the best response.0
some stats people know may know
 one year ago

UnkleRhaukusBest ResponseYou've already chosen the best response.2
\[\langle x^2\rangle =\sum\limits_{j=0}^\infty x^2 P(j)\]
 one year ago

AryangBest ResponseYou've already chosen the best response.0
this reminds me of a very fundamental/basic question in calculus..please see my next question..i'll post link..
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
\[\frac{d}{dx} (\frac{x^3}{3})\]
 one year ago

UnkleRhaukusBest ResponseYou've already chosen the best response.2
what are you doing at @lgbasallote ,
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
\[x^2 = r^2  y^2\]
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
trying to get all that's x^2 and see if anythign suits him
 one year ago

AryangBest ResponseYou've already chosen the best response.0
http://openstudy.com/study?login#/updates/4ffffc85e4b0848ddd64e880
 one year ago

UnkleRhaukusBest ResponseYou've already chosen the best response.2
im pretty sure i have provided the answer to the question
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
we all think that...
 one year ago

UnkleRhaukusBest ResponseYou've already chosen the best response.2
the expectiation value of \(x\) \[\langle x\rangle =E(x)\]
 one year ago

Raja99Best ResponseYou've already chosen the best response.0
@UnkleRhaukus yes but x^2
 one year ago

lalalyBest ResponseYou've already chosen the best response.4
\[Var(x)=E(x^2)(E(x))^2\]
 one year ago

Raja99Best ResponseYou've already chosen the best response.0
i got the ans... thanks all
 one year ago

UnkleRhaukusBest ResponseYou've already chosen the best response.2
\[\sigma_x=\langle x^2\rangle\langle x\rangle ^2\]
 one year ago

UnkleRhaukusBest ResponseYou've already chosen the best response.2
The expectation value , or expect value of a function is \[\langle f(x)\rangle =\sum\limits_{x=0}^\infty f(x)P(x)\] where \(P(x)\) is the probability of x
 one year ago

Raja99Best ResponseYou've already chosen the best response.0
yes for a discrete random variable
 one year ago

UnkleRhaukusBest ResponseYou've already chosen the best response.2
im not sure why i put j instead of x,
 one year ago

UnkleRhaukusBest ResponseYou've already chosen the best response.2
oh, you want a continuous function?
 one year ago

UnkleRhaukusBest ResponseYou've already chosen the best response.2
\[\langle f(x)\rangle=\int\limits_{\infty}^\infty f(x)\rho(x)\text dx\]
 one year ago

UnkleRhaukusBest ResponseYou've already chosen the best response.2
where \(\rho(x)\) is the probability density
 one year ago

UnkleRhaukusBest ResponseYou've already chosen the best response.2
so \[\langle x^2\rangle=\int\limits_{\infty}^\infty x^2\rho(x)\text dx\]
 one year ago

Raja99Best ResponseYou've already chosen the best response.0
@UnkleRhaukus small question the E(constant) is a constant right
 one year ago

UnkleRhaukusBest ResponseYou've already chosen the best response.2
if the distribution of the variable \(x\) is constant , yes
 one year ago
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