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The average waiting
time (between counting two consecutive Geiger pulses)
was found to be 0.325 seconds, as described yesterday
morning. This makes r=1/0.325=3.08 cnts/s.
The [Poisson] formula (with r*t=3.08*0.2=0.615) makes
the following predictions:
m=0 --> 1445 outcomes (instead of experimental 123)
m=1 --> 890 outcomes (instead of experimental 467)
m=2 --> 274 outcomes (instead of experimental 674)
m=3 --> 56 outcomes (instead of experimental 604)
m=4 --> 7 outcomes (instead of experimental 503)
m=5 --> 1 outcome (instead of experimental 172)
m=6 --> 0 outcome (instead of experimental 85)
The formula would roughly match experimental outcomes
if r*t=15 were used, instead of 0.616. I am puzzled;
something is not right somewhere.