Heights (cm) and weights (kg) are measured for 100 randomly selected adult males, and range from heights of 135 to 193 cm and weights of 41 to 150 kg. Let the predictor variable x be the first variable given. The 100 paired measurements yield x=167.70 cm, y=81.43 kg, r=0.301, P-value=0.002, and y=−103+1.13x. Find the best predicted value of y (weight) given an adult male who is 137 cm tall. Use a 0.10 significance level.

i used to know how to do this in 7th but i forget easily

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i need on these three questions. find standard form equation of line perpendicular to y = (2/3)x - 8 that goes through the point

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the first one, all those points on the line just make a strait line.