QUESTIONS
Question 1
A restaurant gets an average of 12 phone orders in a 2 hour time period. In order to find the probability that the restaurant will get exactly 2 phone orders in a 30 minute period using the Poisson distribution, what is the average number of phone orders per 30 minutes?
Question 2
Christine has a motion detector light which gets activated an average of 16 times every 2 hours during the night. In order to find the probability that the motion detector light will be activated more than 4 times in a 25 minute period during the night using the Poisson distribution, what is the average number of activations per 25 minutes?
- Round your answer to three decimal places.
Question 3
Stephanie gets an average of 11 calls during her 8-hour work day. What is the probability that Stephanie will get more than 4 calls in a 2-hour portion of her work day? (Round your answer to three decimal places.)
Question 4
Justin has a bird feeder which gets visited by an average of 18 birds every 2 hours during daylight hours. What is the probability that the bird feeder will be visited by more than 5 birds in a 40-minute period during daylight hours? (Round your answer to three decimal places.)
Question 5
Elizabeth gets an average of 10 emails during her 8 hour work day. In order to find the probability that Elizabeth will get more than 3 emails in a 3 hour portion of her work day using the Poisson distribution, what is the average number of emails received per 3 hours?
- Round your answer to two decimal places.
Question 6
A bakery gets an average of 20 phone orders in a 2 hour time period. In order to find the probability that the bakery will get exactly 2 phone orders in a 15 minute period using the Poisson distribution, what is the average number of phone orders per 15 minutes?
- Round your answer to one decimal place.
Question 7
On average, Ruth has noticed that 19 trains pass by her house daily (24 hours) on the nearby train tracks. What is the probability that more than 4 trains will pass her house in a 4 hour time period?
- Round the final answer to three decimal places.
Question 8
Jerry has a bird feeder which is visited by an average of 14 birds every 2 hours during daylight hours. What is the probability that the bird feeder will be visited by more than 2 birds in a 25-minute period during daylight hours?
- Be sure to round your answer to three significant figures.
ANSWERS:
Question 1
A restaurant gets an average of 12 phone orders in a 2 hour time period. In order to find the probability that the restaurant will get exactly 2 phone orders in a 30 minute period using the Poisson distribution, what is the average number of phone orders per 30 minutes?
Answer:
λ=3
Question 2
Christine has a motion detector light which gets activated an average of 16 times every 2 hours during the night. In order to find the probability that the motion detector light will be activated more than 4 times in a 25 minute period during the night using the Poisson distribution, what is the average number of activations per 25 minutes?
- Round your answer to three decimal places.
Answer:
λ=3.333
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