Sixteen independent measurements were made of the resistance of a resistor. The average was 52.37 ? and the standard deviation was 0.12 ?.
a. Estimate the resistance of this resistor, and find the uncertainty in the estimate.
b. A single measurement is made of the resistance of another resistor. This measurement is 61.42 ?. What is the uncertainty in this measurement?
(a) The estimate of the resistance is the average of the 16 measurements, which is 
= 52.37. The uncertainty is 
.
(b) The uncertainty in a single measurement is ?= 0.12 ?.
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