404 reputation
311
bio website
location
age
visits member for 1 year, 10 months
seen Jul 4 at 8:17

Jul
2
awarded  Curious
Apr
4
awarded  Notable Question
Feb
14
awarded  Popular Question
Jan
21
asked Is this Newton binomial legal?
Dec
28
accepted What's the variance of this random variable?
Dec
28
revised What's the variance of this random variable?
deleted 1 characters in body
Dec
28
comment What's the variance of this random variable?
I used sum((x_i-E(X))^2*p_i) and E(X^2)*E^2(X)
Dec
28
asked What's the variance of this random variable?
Dec
24
accepted Is this definition of a quantile proper?
Dec
24
asked Is this definition of a quantile proper?
Dec
1
awarded  Notable Question
Nov
28
awarded  Popular Question
Oct
24
awarded  Yearling
Sep
17
awarded  Popular Question
Jun
17
accepted I don't understand this notation… - Series with ln
Jun
17
comment I don't understand this notation… - Series with ln
ok, it's $$ (ln3)^n $$ Thank you very much :)
Jun
17
asked I don't understand this notation… - Series with ln
Jun
15
comment A directional derivative of $f(x,y)=x^2-3y^3$ at the point $(2,1)$ in some direction might be:
ok, now I understand :) Thank you - accepted :).
Jun
15
accepted A directional derivative of $f(x,y)=x^2-3y^3$ at the point $(2,1)$ in some direction might be:
Jun
15
comment A directional derivative of $f(x,y)=x^2-3y^3$ at the point $(2,1)$ in some direction might be:
Are you sure e) is correct? it would be 0+0=1, am I right?