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seen Sep 11 at 0:29

"The quieter you become, the more you are able to hear..."


Sep
10
asked Probability density function of sum of random variables
Aug
21
awarded  Popular Question
Jul
29
comment Independent of random variables.
@StefanHansen thanks very much.
Jul
21
asked conditional probability about sum and product rule
Jul
13
accepted Terminology on algebra.
Jul
12
asked Terminology on algebra.
Jul
9
awarded  Civic Duty
Jul
2
awarded  Curious
Jul
2
awarded  Inquisitive
Jul
2
asked Independent of random variables.
Jun
9
asked The maximum term in Binomial distribution
Jun
7
accepted Asymptotic in hypergeometric distribution.
Jun
6
asked Asymptotic in hypergeometric distribution.
May
31
accepted Does the inequality $\frac{1-x_1x_2}{1-y_1y_2} \leq \frac{1-x_1}{1-y_1} + \frac{1-x_2}{1-y_2}$ hold?
May
31
asked Does the inequality $\frac{1-x_1x_2}{1-y_1y_2} \leq \frac{1-x_1}{1-y_1} + \frac{1-x_2}{1-y_2}$ hold?
May
28
asked $\sigma$-algebra and measurable set.
May
27
awarded  Popular Question
May
26
comment Derivative of $f(x)=\int_1^{\frac{1}{x}}\frac{\text{d}t}{\sqrt{(t^2-1)(1-t^2x^2)}}$
@ReneSchipperus because $\varphi(x)=\frac{1}{x}$. then $F(x,\varphi(x))=\frac{1}{\sqrt{(1-\frac{1}{x^2})(1-1)}}$ so it is meaningless
May
26
comment Derivative of $f(x)=\int_1^{\frac{1}{x}}\frac{\text{d}t}{\sqrt{(t^2-1)(1-t^2x^2)}}$
@DavidH I have edited the post. the integral lower bound is $1$, and $x \in (0,1)$. then the integral is real-valued.
May
26
comment Derivative of $f(x)=\int_1^{\frac{1}{x}}\frac{\text{d}t}{\sqrt{(t^2-1)(1-t^2x^2)}}$
@JPi, sorry .I made a mistake. the integral is from $1$,not $0$