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Recent content by XaynAly7

  1. X

    urgent stats help ∑(x-a) and ∑(x-a)^2

    suppose that y=x-a.. then u'll have ul have ∑y n ∑y^2..they'll probably give u n=something..so just calculate mean n standard deviation using y..the convert to x by turning y=x-a to x=y+a... ull get mean..but dont add nythn to s>d it will remain unchanged.. hope u found it helpful
  2. X

    predictions for physics practical p.31

    rheostat n sumthn related to cylinders...
  3. X

    INFO on Phy Prctical 31?

    http://www.youtube.com/watch?v=-GCtLF_jsm8 try this....
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