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Calculate coefficient of correlation from the following data:

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`r=(sumdx'dy'-((sumdx') xx(sumdy'))/(N))/(sqrt(sumdx'^(2)=((sumdx')^(2))/(N))xx sqrt(sumdy'^(2)-((sumdy')^(2))/(N)))`
`=(42-((3)xx(4))/(6))/(sqrt(19-((3)^(2))/(6))xxsqrt(196-((4)^(2))/(6)))`
`=(42-2)/(sqrt(19-1.5)xxsqrt(96-2.67))`
`=(40)/(sqrt(17.5)xxsqrt(93.33))`
`=(40)/(4.18xx9.66)=(40)/(40.3788)=0.99`
Coefficient of Correlation (r)=0.99
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