Geiger counter records 100 radioactive decays in 5 minutes. Find an approximate 95% interval for the number of decays per hour.

Geiger counter records 100 radioactive decays in 5 minutes. Find an approximate 95% interval for the number of decays per hour.



-Start by finding a 95% interval for radioactive decay in a 5 minutes period
-The estimated standard deviation is 100−−−√=10100=10
-So the interval is λ^±1.96×10=100±19.6λ^±1.96×10=100±19.6
-So, per hour: [964.8,1435.2]

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