Question: 7. A radioactive source emits 4 particles on average during a five-second period. (a) Calculate the probability that it emits 3 particles during a 5-second

7. A radioactive source emits 4 particles on average during a five-second period.

(a) Calculate the probability that it emits 3 particles during a 5-second period.

(b) Calculate the probability that it emits at least one particle during a 5-second period.

(c) During a ten-second period, what is the probability that 6 particles are emitted?

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