两组测定结果:甲组为0.38%,0.38%,0.39%,0.40%,0.40%,乙组为0.37%,0.39%,0.40%,0.41%,试比较两组测定结果的精密度( )
A.甲、乙两组相同 B.甲组比乙组高 C.乙组比甲组高 D.无法判别正确答案B
两组测定结果:甲组为0.38%,0.38%,0.39%,0.40%,0.40%,乙组为0.37%,0.39%,0.40%,0.41%,试比较两组测定结果的精密度( )
A.甲、乙两组相同 B.甲组比乙组高 C.乙组比甲组高 D.无法判别正确答案B