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Nuclear physicist found the probability of neutral particles being reflected was 0.16 and of being absorbed...

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Basic Math

Nuclear physicist found the probability of neutral particlesbeing reflected was 0.16 and of being absorbed as 0.84.

a. What is the expected number of particles that would bereflected if 1,000 are released?

b. Assuming the normal approximations to the binomialdistribution, what is the probability that 140 or fewer particleswould be absorbed?

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