Question
A radioactive material is emitting particles, and each particle independently has a 1/7 chance
of penetrating through a shield. What are the probabilities of the following events?
(a) After 100 emissions of which 3 have penetrated, exactly 1 particle from a sample of 10 emissions have penetrated.
(b) The third particle that penetrates is the 100th one emitted.

IV) A radioactive material is emitting particles, and each particle independently has a 1/7 chance of penetrating through a s
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Answer #1

Pl exactly one particle from a sangle of to) = (9) (20)/100=0.24768 - 0-24768 b) no. of success =r= 3 no. of trials o = 11=1

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