Method and examples
Find Pearson's Correlation Coefficient r for X & Y or Class-X & Y
Type your data in either horizontal or verical format,
for seperator you can use '-' or ',' or ';' or space or tab
for sample click random button

OR
X & Y   Class-X & Y
Rows :    
Click On Generate
`r` formula -
  1. Auto Select method
  2. Method-1 : `r = (n * sum xy - sum x * sum y)/(sqrt(n * sum x^2 - (sum x)^2) * sqrt(n * sum y^2 - (sum y)^2))`
  3. Method-2 : `r = (sum (x-bar x)(y-bar y))/(sqrt(sum (x-bar x)^2) * sqrt(sum (y-bar y)^2))`
    Or `r = (n * sum dxdy - sum dx * sum dy)/( sqrt(n * sum dx^2 - (sum dx)^2) * sqrt(n * sum dy^2 - (sum dy)^2))`
  1. Class-X2 - 44 - 66 - 88 - 10
    Y3421
  2. Class-X20 - 2525 - 3030 - 3535 - 4040 - 4545 - 50
    Y11017080454035
  3. Class-X110 - 111111 - 112112 - 113113 - 114114 - 115115 - 116116 - 117117 - 118118 - 119
    Y6006406406807007808309001000
  4. X01234
    Y151063
  5. X346710
    Y911141516
  6. X1001011021021009997989695
    Y98999997959295949091
  7. X23272829303133353639
    Y18222324252628293032
  8. X300350400450500550600650700
    Y8009001000110012001300140015001600
  9. X1011121314
    Y31218123
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