1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Proof of equation

  1. Apr 25, 2014 #1
    Hi there. I need some help to prove one equation.
    03b74f4e27438cd10082a9bf1c0ce665304.jpg
    There is my solution but something is wrong i think.
    848f05e7a87670f1157de4db5af8d13d700.jpg
    Any help would be appreciated :)
     
  2. jcsd
  3. Apr 25, 2014 #2

    LCKurtz

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    You should be able to simplify each side to$$
    \sum_{i=1}^n (X_iY_i) - n\bar X \bar Y$$
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Proof of equation
Loading...