The times when a photocopier breaks down occur randomly and independently of eac

Question

The times when a photocopier breaks down occur randomly and independently of each other. The average rate of breakdowns is 3 times per week. a The number of times that the photocopier will break down in a day has _____ distribution. A an exponential B. a binomial C. a normal D. a Poisson b. The number of hours between breakdowns has _____ distribution. A. a Poisson B. a normal C. a binomial D. an exponential c. The time measured in days between the beginning of the work week and the next photocopier breakdown has _____ distribution. A. a normal B. a binomial C. an exponential D. a Poisson d. The number of photocopier breakdowns that occur in a given two week period has _____ distribution. A. a normal B. a binomial C. a Poisson D. an exponential

Explanation / Answer

a) Poisson (Since it occurs randomly and independently of each other and average rate is known)

b) Normal

c) Poisson

d) Poisson

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