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How random are financial data series?

I stumpled upon a blog post where someone did this work and reported about it here: http://www.turingfinance.com/hacking-the-random-walk-hypothesis/ Some quotes: The scores for the data sets lie ...
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3 votes

Does anyone know where to practice mental math for trader interviews?

I.m.o. tradermath.org is perfect for flow but they don't have fractions for some reason. Currently working on a tool for fractions I can send you the GitHub in DM if you want.
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2 votes

Does anyone know where to practice mental math for trader interviews?

You could write your own. That would allow you to customize it as you wish, and have the double effect of practicing programming.
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1 vote

Does anyone know where to practice mental math for trader interviews?

This is a personal fav of mine, you can customize the operations and range and then practice on different parts: https://arithmetic.zetamac.com/ I would also study tricks to make certain calculations ...
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2 votes

Does anyone know where to practice mental math for trader interviews?

I personally used the Secrets of Mental Math by Arthur Benjamin and https://www.tradermaths.com/. However, you should still practice fractions after using both resources as this is not well explained ...
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