Technician A is asked to make a 5 minute measurement with a

Technician A is asked to make a 5 minute measurement with a source to determine the count rate and its standard deviation. The measurement yields 1558 counts. Background can be neglected.

a) What is the observed count rate?

b) What is the standard deviation of the count rate?

c) What is the probability that technician B, in an independent 5-minute measurement, would obtain a value close, or closer, to the true count rate as technician A?

Solution

answer is 0.420