· And then, dividing gives (125,000 piano tunings per year in Chicago) / (1000 piano tunings per year per piano tuner) = 125 piano tuners in Chicago. Apart from piano tuners, this kind of reasoning could help us to answer scientific questions too.

· In 2009, someone had seen 44 RPTs in the Chicago chapter and 14 in the North Shore chapter, for a total of 58. Counting RPTs probably gives you a lower bound, since to be an RPT one must pass a series of exams and pay non-trivial annual dues. But the actual number of piano tuners is most likely higher, for a couple of reasons:

Fermi's Piano Tuner Problem . As a lecturer, Enrico Fermi used to challenge his classes with problems that, at first glance, seemed impossible. One such problem was that of estimating the number of piano tuners in Chicago given only the population of the city.

Scientists often look for Fermi estimates of the answer to a problem before turning to more sophisticated methods to calculate a precise answer. This provides a useful check on the results. While the estimate is almost certainly incorrect, it is also a simple calculation that allows for easy error checking, and to find faulty assumptions if the figure produced is far beyond what we might reasonably expect. By contrast, precise calculations can be extremely complex but with the expectation that the answer they produce i…

Answer quickly: how many piano tuners are there in the city of Chicago? Robbie Gonzalez. 9/12/12 4:24PM ...

· We scored 689 Piano Tuners in Chicago, IL and Picked the Top 18 Last Updated: March 05, 2020. A & A Music Academy Hanover Park, IL 60133 (630) 837-7484 Visit Website.

(125,000 piano tuning per year in Chicago) / (1000 piano tunings per year per piano tuner) = 125 piano tuners in Chicago. A famous example of a Fermi-problem-like estimate is the Drake equation, which seeks to estimate the number of intelligent civilizations in the galaxy.

Dividing gives (125,000 piano tuning per year in Chicago) / (1000 piano tunings per year per piano tuner) = 125 piano tuners in Chicago. Note: For this problem solving job interview question, there is an actual logical answer, however the interviewer will want to evaluate your thinking process.

Fermi's Piano Tuner Problem . As a lecturer, Enrico Fermi used to challenge his classes with problems that, at first glance, seemed impossible. One such problem was that of estimating the number of piano tuners in Chicago given only the population of the city.

· The challenge of estimating the number of piano tuners in the city of Chicago is the classical example of a Fermi Problem. A problem-solver guesstimates the total population of Chicago, then the fraction of families in Chicago that may own a piano, and the frequency of piano-tuning, the time it takes to tune a piano, and so on.

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