When you calculate the mean and sd value for data, how to make a decision for the numbers of a exact number and an estimating value?

For example, the accuracy of the caliper is 0.01 mm (=10 micrometer).If you got the data were, 120, 100, 60, 110, 130, 90 micrometer. What's the correct mean and stander deviation value to appear?...

11 November 2014 9,544 2 View