The best thing about being a statistician is that you get to play in everyone's backyard.
-- John Tukey
-- John Tukey
انجمن علمی آمار دانشگاه تهران
Laplace, Pierre-Simon French 1749-1827 ...👇
Co-invented Bayesian statistics. Invented exponential families (Laplace transform), conjugate prior distributions, asymptotic analysis of estimators (including negligibility of regular priors). Used maximum-likelihood and posterior-mode estimation and considered (robust) loss functions
#question
You are given two indistinguishable envelopes, each containing money, one contains twice as much as the other. You may pick one envelope and keep the money it contains. Having chosen an envelope at will, but before inspecting it, you are given the chance to switch envelopes. Should you switch?
You are given two indistinguishable envelopes, each containing money, one contains twice as much as the other. You may pick one envelope and keep the money it contains. Having chosen an envelope at will, but before inspecting it, you are given the chance to switch envelopes. Should you switch?
انجمن علمی آمار دانشگاه تهران
#question You are given two indistinguishable envelopes, each containing money, one contains twice as much as the other. You may pick one envelope and keep the money it contains. Having chosen an envelope at will, but before inspecting it, you are given the…
می توانید پاسخ را همراه با توضیح برای ما ارسال کنید٬ تا در کانال منتشر کنیم.
Statisticians, like artists, have the bad habit of falling in love with their models.
-- George Box
-- George Box
#نکات_R
uniroot(fun,c(a,b)) will find
where fun(x) equals zero in the interval [a,b] https://t.co/jCb2sisfcv
uniroot(fun,c(a,b)) will find
where fun(x) equals zero in the interval [a,b] https://t.co/jCb2sisfcv
www.rdocumentation.org
uniroot function | R Documentation
The function uniroot searches the interval from lower
to upper for a root (i.e., zero) of the function f with
respect to its first argument. Setting extendInt to a non-"no" string, means searching
for the correct interval = c(lower,upper) if sign(f(x))…
to upper for a root (i.e., zero) of the function f with
respect to its first argument. Setting extendInt to a non-"no" string, means searching
for the correct interval = c(lower,upper) if sign(f(x))…
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Why Statistics?
انجمن علمی آمار دانشگاه تهران
Why Statistics?
تماشای این ویدئو را از دست ندهید.
The Lady Tasting Tea: How Statistics Revolutionized Science in the Twentieth Century
#معرفی_کتاب
#معرفی_کتاب
انجمن علمی آمار دانشگاه تهران
Peirce, Charles Sanders American 1839-1914 ...
Formulated modern statistics in "Illustrations of the Logic of Science" (1877–1878) and "A Theory of Probable Inference" (1883). With a repeated measures design, introduced blinded, controlled randomized experiments (before Fisher). Invented optimal design for experiments on gravity, in which he "corrected the means". He used correlation, smoothing, and improved the treatment of outliers. Introduced terms "confidence" and "likelihood" (before Neyman and Fisher). While largely a frequentist, Peirce's possible world semantics introduced the "propensity" theory of probability. See the historical books of Stephen Stigler