n=6 GM = ( 70 × 42 × 85 × 75 × 68 × 55)1/6 log GM = (1/6) [log 70 + log 42 +log 85 + log 75 + log 68 + log53] log GM = (1/6)[ 1.8451 + 1.6232 + 1.9294 + 1.8751 + 1.8751 + 1.8325+1.7243] log GM = (1/6)[10.8296] = 1.8049