The diameter of a metal rod was measured eight times and the results in millimeters were: 29.2, 29.2, 29.1, 29.2, 29.2, 29.2, 29.3, 29.2. The true diameter of the rod is 29.2 millimeters. The measurement process appears to be:
A) biased and unreliable.
B) reliable but somewhat biased.
C) unbiased but unreliable.
D) unbiased and reliable.
Correct Answer:
Verified
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