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Jeffrey Rosenthal

@jeffski.bsky.social
909 followers 336 following 24 posts

Professor of Statistics at the University of Toronto, Canada, and author of "Struck by Lightning". Info at: probability.ca

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Reposted by Jeffrey Rosenthal
Dezene Huber 🍁 🌻 @dezene.me · 09/07/2026
“It seems that (the Government of Alberta’s) sampling method is seriously flawed and could vastly underestimate the percentage of valid signatories.” 🌎 - @jeffski.bsky.social, University of Toronto www.cbc.ca/news/canada/...
cbc.ca
Questions emerge about statistical sampling used on rejected anti-coal petition | CBC News
A statistics professor raises concerns about Elections Alberta's sampling method used to verify Corb Lund's Water Not Coal petition which was deemed to be under the signature threshold last week.
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Jeffrey Rosenthal @jeffski.bsky.social · 02/05/2026
Just how lucky was RJ Barrett's winning basketball shot last night? If it had been just 2.1 centimeters CLOSER to the middle of the hoop, then it would have bounced out, and the Raptors would have lost. See my explanation here. probability.ca/jeff/writing...
probability.ca
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Jeffrey Rosenthal @jeffski.bsky.social · 06/01/2026
Fun fact: This international ranking of scholars has ranked me as fifth in the world of all time in terms of "Markov chain" research citations (and 57th in "probability" overall). It's probably a pretty questionable ranking algorithm, but I will take it. scholargps.com/rankings/hig...
scholargps.com
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Jeffrey Rosenthal @jeffski.bsky.social · 02/11/2025
macleans.ca/sports/world...
macleans.ca
The Blue Jays Lost. So Did I. - Macleans.ca
I confidently declared the Blue Jays the odds-on favourites to win the World Series. It’s been a stressful week.
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Jeffrey Rosenthal @jeffski.bsky.social · 01/11/2025
After last night's tough loss, my statistical model now gives the #BlueJays a 56.84% chance of prevailing in tonight's seventh game. It'll be tight. Let's go Blue Jays!
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Jeffrey Rosenthal @jeffski.bsky.social · 30/10/2025
With last night's convincing win, my statistical model now gives the #BlueJays an 81.4% chance of winning the World Series. Go Jays Go! :-)
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Jeffrey Rosenthal @jeffski.bsky.social · 27/10/2025
A short fun interview about Blue Jays probabilities I did for QR 770AM Calgary radio on Friday: archive.tveyes.com/18120/455385...
archive.tveyes.com
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Jeffrey Rosenthal @jeffski.bsky.social · 23/10/2025
I'm briefly quoted here. www.ctvnews.ca/sports/artic...
ctvnews.ca
Jays vs. Dodgers: What the numbers tell us
The World Series heads to Toronto this week with the Los Angeles Dodgers hoping to repeat as league champions while the Toronto Blue Jays are looking for their first title since 1993.
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Jeffrey Rosenthal @jeffski.bsky.social · 22/10/2025
My simple statistical model currently gives the Blue Jays a 52.46% chance of winning baseball's World Series this year. Go #BlueJays!
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Jeffrey Rosenthal @jeffski.bsky.social · 17/07/2025
I will be performing music and voices this Sunday afternoon in this fun Sherlock Holmes spoof radio play, at the Bata Show Museum in Toronto. Free! All welcome! Come check it out! batashoemuseum.ca/event/sherlo...
batashoemuseum.ca
Sherlock Holmes Day at the BSM
Step into the world of mystery, deduction, and intrigue, and celebrate the greatest detective in literary history.
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Jeffrey Rosenthal @jeffski.bsky.social · 10/07/2025
I’m a statistics professor who became embroiled in the world of online chess drama theconversation.com/im-a-statist...
theconversation.com
I’m a statistics professor who became embroiled in the world of online chess drama
When one former world chess champion implied that another was cheating on the online platform Chess.com, a statistician was called in to examine the evidence.
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Jeffrey Rosenthal @jeffski.bsky.social · 19/06/2025
A #UofT News piece about my recent statistical analysis of an online chess scandal. www.artsci.utoronto.ca/news/statist...
artsci.utoronto.ca
Statistical scientist Jeffrey Rosenthal wades into the chess scandal that’s making headlines
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Jeffrey Rosenthal @jeffski.bsky.social · 14/05/2025
My article about the online chess winning streak controversy is now published in the Harvard Data Science Review. hdsr.mitpress.mit.edu/pub/ex6vbavk... @rmcleodb.bsky.social
hdsr.mitpress.mit.edu
An Investigation Into Probabilities of Streaks in Online Chess
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Jeffrey Rosenthal @jeffski.bsky.social · 05/05/2025
I'm in this comedy show tonight in Toronto, performing improv comedy AND musical accompaniment AND storytelling. Come check it out! comedybar.ca/shows/CincoD...
comedybar.ca
Cinco De Comedia | Comedy Bar
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Reposted by Jeffrey Rosenthal
Louis Sharrock @louissharrock.bsky.social · 29/01/2025
Very interesting stuff!
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Reposted by Jeffrey Rosenthal
Dan Falk @danfalk.bsky.social · 14/03/2025
13/ @uoft.bsky.social statistician Jeffrey Rosenthal (@jeffski.bsky.social) has a nice collection of "piems" here: probability.ca/jeff/writing..., while Mike Keith has some amazing (& long!) ones, here: cadaeic.net/cadenza.htm #PiDay #piems
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Reposted by Jeffrey Rosenthal
arxiv math.ST @arxiv-math-st.bsky.social · 29/01/2025
Gareth O. Roberts, Jeffrey S. Rosenthal Quantifying the Speed-Up from Non-Reversibility in MCMC Tempering Algorithms arxiv.org/abs/2501.16506
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Reposted by Jeffrey Rosenthal
Just George Oh 🤘😎💨 @timmytwoshirts.bsky.social · 18/01/2025
Ayup
don't take stuff so seriously, remember... you are here

* arrow pointing to small speck in Milky Way galaxy
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Reposted by Jeffrey Rosenthal
Peter Murphy @peterwmurphy1.bsky.social · 01/01/2025
For Maths fans, 2025 is a square. 45² = 45 x 45 = 2025 Also, 9² x 5² = 2025 40² + 20² + 5² = 2025 My favourite? 1³+2³+3³+4³+5³+6³+7³+8³+9³ = 2025 #Mathematics #teaching #education
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Jeffrey Rosenthal @jeffski.bsky.social · 14/12/2024
Happy Friday the Thirteenth! I was actually BORN on a Friday the Thirteenth. In fact, "Born on Friday the Thirteenth" was my proposed title for my book about luck, eventually called Knock On Wood. Oh, did I mention that it makes a great Christmas present? 🙂 probability.ca/kow/
probability.ca
Knock on Wood
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Jeffrey Rosenthal @jeffski.bsky.social · 08/12/2024
Exams done. Phew!
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Jeffrey Rosenthal @jeffski.bsky.social · 06/12/2024
One final exam done, one still to go (tomorrow).
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Reposted by Jeffrey Rosenthal
WIRED @wired.com · 04/12/2024
NEW: Bluesky has seen massive growth in the weeks following the US election. There are 24 million users on the social media platform. With great engagement comes great responsibility, which means Bluesky CEO @jay.bsky.team has a lot to do. She sat down with WIRED to talk about it.
wired.com
Bluesky Now Has 24 Million Users. Jay Graber Is Still Vowing to Keep It From Enshittification
At WIRED's The Big Interview event, Bluesky CEO Jay Graber discussed the booming user numbers for the Twitter rival and why giving social media users more control is a recipe for success.
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Jeffrey Rosenthal @jeffski.bsky.social · 03/12/2024
Deep thought of the day: If you always expect the worst, then you will never be disappointed.
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Reposted by Jeffrey Rosenthal
Jason Markusoff @markusoff.bsky.social · 02/12/2024
CAJ Mentorship Program is the best gift you can give yourself, and it's free for CAJ members. 6-week private mentoring by, omg omg: @conniewalker.bsky.social @nickhunebrown.bsky.social @sarahcrgr.bsky.social @adrianklee.bsky.social @shireenahmed.bsky.social MOAR. Apply now: caj.ca/programs/men...
caj.ca
Mentorship - Fall 2024 - Canadian Association of Journalists
Fall 2024 Mentor Bios Below you will find an alphabetic list of mentors for the Fall 2024 round of the mentorship program. Each mentor has their bio, who they are looking to mentor, the languages the...
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Reposted by Jeffrey Rosenthal
Richie Assaly @rdassaly.bsky.social · 01/12/2024
Is Bluesky the real deal or just more of the same? For the Toronto Star, a dispatch on my first two weeks hanging out in this space. www.thestar.com/news/canada/...
thestar.com
Richie Assaly: I grew up on Twitter. But with a new Trump era on the horizon, I’ve turned to Bluesky. Here’s what I found there
On its surface, the apps almost identical to the old Twitter. But gone, at least for now, is much of the noise — the casual racism, the bullying blue checks,
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Jeffrey Rosenthal @jeffski.bsky.social · 01/12/2024
"My new career is going great! I'm making MILLIONS! Why, just yesterday, I took in 0.00001 million dollars!!"
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Jeffrey Rosenthal @jeffski.bsky.social · 29/11/2024
I performed some music at my department's holiday party today. (With graduate students recruited as my backup singers.) More of my music at: probability.ca/jeff/music/
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Jeffrey Rosenthal @jeffski.bsky.social · 29/11/2024
Just taught my last class of the semester -- phew!
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Jeffrey Rosenthal @jeffski.bsky.social · 25/11/2024
www.cbc.ca/news/politic...
cbc.ca
Canadian MPs among social media users pivoting from X to Bluesky in the wake of U.S. vote | CBC News
In the wake of the U.S. election, many social media users have started to migrate from X to Bluesky, including some Canadian MPs. The move also comes as some experts warn that X and its owner Elon Musk could influence the next Canadian election.
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Reposted by Jeffrey Rosenthal
Norm Di Pasquale🇨🇦 @normsworld.bsky.social · 18/11/2024
Doug Ford’s absurd efforts to rip out Toronto’s bike lanes capture international attention, via the @theguardian.com: Backlash after Ontario premier threatens to tear up cycling lanes in Toronto www.theguardian.com/world/2024/n... #topoli #bikeTO
theguardian.com
Bikes v cars: backlash after Ontario premier threatens to tear up cycling lanes in Toronto
Doug Ford plans to rip out bike lanes on busy streets, citing ‘insanity’ of gridlock he says they contribute to
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Jeffrey Rosenthal @jeffski.bsky.social · 12/11/2024
This is my first-ever Bluesky post. Hello everyone!
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