The university policy department must write, on average, five tickets per day to keep department revenues at budgeted levels. Suppose the number of tickets written per day follows a Poisson distribution with a mean of 8.8 tickets per day. Find the probability that less than six tickets are written on a randomly selected day from this distribution
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Answer:
Simple distillation is a method for separating the solvent from a solution. For example, water can be separated from salt solution by simple distillation. This method works because water has a much lower boiling point than salt. When the solution is heated, the water evaporates.
Answer:
Accidents recur in a factory at the rate of 4 per week. Assume that accidents happen randomly and independently of each other. Answer the following questions to 3 places past the decimal.
a) What is the probability that there is at most 1 accident in a week?
b) What is the probability that there are 2 accidents in a week?
c) What is the probability of no accidents on a given day? Assume the factory works 7 days per week.
d) What is the probability of there being 3 accident-free days in a week?