Poisson distribution

ghafsj

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Dec 15, 2020
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Suppose that men arrive at a ticket office according to a Poisson process at the rate λ1 = 120 per hour, and women arrive according to an independent Poisson process at the rate λ2 = 60 per hour. What is the probability that two or few people arrive in a one-minute period?
 
Hi,
You really should read the posting guidelines if you want to receive the best help you can receive. Basically you need to show some work so that the helpers here know what type of help you need. On this forum we prefer not to solve problems for students but rather to give the student helpful hints so they can solve their own problem.
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Poisson process rates add when the processes are combined like this.

So just assume you have a rate of 180 people/hr, or 3 people per minute, and compute the probability of 2 or fewer people arriving in a minute.
You should be able to do that.
 
Poisson process rates add when the processes are combined like this.

So just assume you have a rate of 180 people/hr, or 3 people per minute, and compute the probability of 2 or fewer people arriving in a minute.
You should be able to do that.
Thank you so much sir
 
what's going on w/this thread?
The original post was deleted?
Did the OP do this?
 
what's going on w/this thread?
The original post was deleted?
Did the OP do this?
I don't see anything unusual, in this thread. Is post #1 not the original op? The system doesn't show any modifications have been made to post #1. (By the way, deleting an op removes the entire thread.)

?
 
All my other questions were deleted, I can't even see them myself.
The system shows that you've started four threads. Upon inspection, it appears that your latest thread is a duplicate, so I just merged the two. What specifically do you believe was deleted?

Have you read the forum guidelines, at the link you were provided? They explain why new members' initial posts don't appear on the boards right away. Could it be that your "deleted" questions were simply waiting in queue for approval?

?
 
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