Maths-
General
Easy

Question

The coefficient of correlation for the following data will be

  1. 0.224    
  2. 0.240    
  3. 0.30    
  4. None of these    

The correct answer is: 0.224


    Use r equals fraction numerator sum left parenthesis x minus stack x with ̄ on top right parenthesis left parenthesis y minus stack y with ̄ on top right parenthesis over denominator square root of sum left parenthesis x minus stack x with ̄ on top right parenthesis to the power of 2 end exponent sum left parenthesis y minus stack y with ̄ on top right parenthesis to the power of 2 end exponent end root end fraction.

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