During a given exercise in class data on the heights of fathers (X) and of sons (Y) was collected. The following results were then obtained: Σχ= 71 , ΣΥ = 70, Σ χ2555, Σγ2 526 and ΣXΥ527 %3D %3D Check for the level of association between the heights of fathers 10 and of 10 sons

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Q: The diagonals of square LMNP intersect at K . Given that LK=1, find KN . 1 K KN =

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Q: In OD, m arc CJ= 4x - 17, m arc KC = 11x + 5, m arc JTK = 25x - 8. Find the following. C J

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