Columbia+ online course: Quantitative Techniques - PIDAY2025 promo code ends April 30

[bjcheung77]

A little late... I came across a couple of social media posts that mention this promotion, which celebrates Pi Day 2025 and the offer ends April 30th, 2025 (X/Twitter, LinkedIn). Can confirm that the PIDAY2025 promo code works (at Checkout). It drops from $149 to Free!

NOTE: to enroll into and complete, Columbia+ online course 'Quantitative Techniques' by Columbia University's Professor Andrew Gelman, one must use an existing Columbia+ user account (its free to create a new account via e-mail signup).

Course Info: https://plus.columbia.edu/content/quanti...techniques
Sign up: https://plus.columbia.edu/user/login?des...techniques

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