Which innovative retail marketing strategy did Mathematica employ in 2019 that increased their educational software sales by 42%?

In the world of mathematics education and product sales, data-driven marketing strategies have revolutionized how mathematical tools, textbooks, and educational software are sold to schools, universities, and individual learners. This trivia question explores how one major mathematical software company used a unique retail marketing approach that leveraged mathematical principles to dramatically increase their market penetration.

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They created 'Dynamic Pricing Algorithms' that adjusted software costs based on a school's previous mathematical achievement scores
They launched 'The Golden Ratio Campaign' that offered progressively decreasing prices to institutions that purchased multiple license tiers
They implemented 'Equation of Success' where software was initially free but charged based on improved student test scores
They developed 'Probability Purchases' where educational institutions entered a lottery for discounted bulk licenses