一個盒的長度是15cm。若百分誤差是4%,求

2009-08-06 3:46 am
a)最大誤差???
b)實際長度的範圍?????


答案以先到先得而且詳盡清楚為優先 . thx

回答 (1)

2009-08-06 4:25 am
✔ 最佳答案
% error = (Max. absolute value/measured value) x 100%
Now % error = 4%, measured value = 15 cm.
so max. ab. error = 4 x 15/100 = 0.6 cm.
Upper limit = 15 + 0.6 = 15.6 cm.
Lower limit = 15 - 0.6 = 14.4 cm.
so range is 14.4 cm. to 15.6 cm.



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