本题目来源于试卷: Tools & Inquiries G.4 Concluding & Evaluating，类别为 IB化学
[单选题]
The diameter of a cylindrical sample was measured using a vr9ad qj2ir .g7o sda*/ernier caliper at thr2d aj q*9oi.gr 7s/drav*45i kbe,nnrw,qlyz 3l, c- kee different points along the sample. The diamqn c4w ,in3,kly-*eb ,zl5kvr eters measured were: 13.50 mm, 13.51 mm, 13.50 mm. The true diameter of the sample is 12.14 mm. What is the likely type of error, and how can the error be reduced?
A. Random error; repeating the experiment 3 more times
B. Random error; calibrating the vernier caliper
C. Systematic error; repeating the experiment 3 more times
D. Systematic error; calibrating the vernier caliper
参考答案: D
本题详细解析:
The readings are close to each other but upa cb44mjqf 7 io5sq(jc*w3p5;qay- are all consistently far from the true value, indicating that the error is likely tf-sj a5( wo m y4qc45j3*qi7p up;bcaqo be systematic.
Systematic errors cannot be corrected by repeating the experiment, and instead, the vernier caliper must be calibrated to correct the zero error.
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