`gamma=(NSigmaXY-(SigmaX)(SigmaY))/(sqrt(NSigmaX^(2)-(SigmaX)^(2))sqrt(NSigmaY^(2)-(SigmaY)^(2)))`
`=((7xx322)-(47xx40))/(sqrt((7xx379)-(47)^(2))sqrt((7xx352)-(40)^(2)))`
`=(2254-1880)/(sqrt((2653-2209))sqrt((2464-1600)))`
`=(374)/(sqrt(444)sqrt(864))=(374)/(sqrt(383616))=(374)/(619.37)=+0.60`
