# Thread: Need to determine the probability

1. ## Need to determine the probability

In a call center 180 calls are received at random over a period of 12 hours. Then the probability to receive calls between 180 to 200 every 12 hours is? What distribution is this?

2. ## Re: Need to determine the probability

A heavyweight will be along soon but in the meantime my guess is
and

Originally Posted by earnestat
In a call center 180 calls are
a period of 12 hours.
Then the probability. . .is?
What distribution is this?
Also, you might write:
-I've already tried 'aaa' but I don't think it's right because of 'bbb'.
-Here's a link where the authors state that the use of the 'ccc' distribution is controversial; how do I resolve this?
-I understand the formula but the numbers don't work, here's my trial answer-'ddd'
-If I need more practice in the basics, what do y'all recommend?
-How might I see this in action the next time I'm waiting for calls from hundreds of dissatisfied customers? How would I correct for my small sample size?
-How can I do a small scale version of this on Excel?
-Of the many statistical fallacies to watch out, which ones are relevant to this problem, if any?

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