Analisis FK = (900) 2 /(5x3) = 54.000 FK = (900) 2 /(5x3) = 54.000 JKp = {(172) 2 + (180) 2 +…+ (192) 2 }/3 – FK = JKp = {(172) 2 + (180) 2 +…+ (192) 