Two electric balances are tested using a standard weight. The true mass of the standard is 1.3111 g. The results of the 5 individual measurements on each balance are recorded below.
Average mass =
Which statement best describes the results?
a) A: poor precision, good accuracy
b) B: good precision, poor accuracy
c) B: good precision, good accuracy
d) B: poor precision, poor accuracy
e) A: good precision, good accuracy
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