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... iteboard. As he added to the equation, he explained.
“It is an equation to find the correlation coefficient, but you used a slightly different version.”
r=?(Xi -X)(Yi-Y)/(n-1)/√?(Xi-X)2/(n-1)*/√?(Yi-Y)2/(n-1).
Woosung wrote without hesitation. Oh Juhoon gave out an unhappy nod as a response.
“You’re right. I guess you’re…good at stats too.”
“It’s the foundation of data analysis. I try to keep up with it.”
Woosung’s knowledge was impressive. Cha Ye ...
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