2) A nuclear plant releases a detectable amount of radioactive gases twice a month on the average. a) Find the probability that there will be at most four such emissions during a month. b) Find the probability that there will be 5 or more such emissions during 3-month month period. c) What is the expected number of emissions during a three-month period?

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2) A nuclear plant releases a detectable amount of
radioactive gases twice a month on the average.
a) Find the probability that there will be at most
four such emissions during a month.
b) Find the probability that there will be 5 or more
such emissions during 3-month month period.
c) What is the expected number of emissions during
a three-month period?
d) If, in fact, 12 or more emissions are detected
during a three-month period, do you think that
there is a reason to be suspicious of the reported
average figure of twice a month? Explain.
STAT210: Probability and Statistics
Handwritng
Transcribed Image Text:2) A nuclear plant releases a detectable amount of radioactive gases twice a month on the average. a) Find the probability that there will be at most four such emissions during a month. b) Find the probability that there will be 5 or more such emissions during 3-month month period. c) What is the expected number of emissions during a three-month period? d) If, in fact, 12 or more emissions are detected during a three-month period, do you think that there is a reason to be suspicious of the reported average figure of twice a month? Explain. STAT210: Probability and Statistics Handwritng
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