Solution:
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The equation of the line of regression of y on x
![](Image133.gif)
Inserting x = 38, we get
y - 33 = 0.74 ( 38 - 33 )
y - 33 = 0.74 ´ 5
y - 33 = 3.7
y = 3.7 + 33
y = 36.7 = 37 ( approximately )
Therefore, the Judge B would have given 37 marks to 8th performance.
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