Deciles and percentiles (for the @CFA Level 1 exam) 

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@@letmeexplaincfa You write number "1" in a very funky way. Many people, especially in Asian countries won't understand that. Number "one" would be more understandable when written as "I"

@@letmeexplaincfa see 1:53, when you wrote n=19. Number "one" was written in a very stylish way and it seems more like a letter

Oh, I did't realise this could be an issue. Thanks for making me aware of this. I can't promise I can change this. I have been writing 1 in this way for more than 40 years :) so it's more or less intrinsic to me. When recording these videos I have to write, talk, look into the camera, so I more or less write on autopilot.

@@letmeexplaincfa No issues. I completely understand. Keep up the hustle Sir 💪