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Question

An experiment was conducted by a student and he obtained 3 values viz. 1.65,1.68 and 1.71, during three repetitive trials, respectively. After sometime, the student got the true value, which was 2.37 So, in the contrast to the real value, the experiments' results should be characterized as:
  1. not accurate and not precise
  2. accurate but not precise
  3. not accurate but precise
  4. accurate, precise, but unreliable

A
not accurate but precise
B
accurate, precise, but unreliable
C
not accurate and not precise
D
accurate but not precise
Solution
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In contrast to the real value, the experimental results should be characterized as not accurate but precise.
Since, there is significant difference between the true value and the experimental results, the results are not accurate.
However, the three repetitive trial values are very close to each other. Hence, the results are precise.

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