A certain length measurement is performed 40 times. The
Chapter , Problem 6.46(choose chapter or problem)
A certain length measurement is performed 40 times. The mean value is 7.75 m, and the standard deviation is 1 cm. Assuming a normal distribution for the error in the measurement, how many readings fall within (a) 1 cm (b) 2 cm (c) 5 cm and (d) 10 cm ofthe mean value?
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