Mathematics Proofs - GCSE & A Level
Manipulating The Sigma Symbol (Coded Data): Edexcel Statistics (1)
Learn how to derive statistical formulas related to coded data and in the process discover how Sigma (summation) symbols can be manipulated.
If you're studying S1 Edexcel Statistics, visit this page for all my coded data proofs: http://mathsvideos.net/coded-data-proofs-means-standard-deviations/
Video by: Tiago Hands (https://www.instagram.com/tiago_hands/)
Instagram Resources:
... https://www.youtube.com/watch?v=Hybh4Jg9nXg
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