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 2 years ago
Phone calls arrive at the rate of 15 per hour at the reservation desk for a hotel, according to a poisson distribution. If no calls are currently being processed, and the desk employee leaves the desk for a 10minute break, what is the probability the phone will ring while he is gone on his break?
 2 years ago
Phone calls arrive at the rate of 15 per hour at the reservation desk for a hotel, according to a poisson distribution. If no calls are currently being processed, and the desk employee leaves the desk for a 10minute break, what is the probability the phone will ring while he is gone on his break?

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benice
 2 years ago
Best ResponseYou've already chosen the best response.1if no calls are being processed is just to throw you off as s poisson distribution is a memoryless property you want to find the prob of zero rings and then take that away from one http://www.youtube.com/watch?v=Fk02TW6reiA this video should explain it

ujuge321
 2 years ago
Best ResponseYou've already chosen the best response.0i watched that video just now but it did not help at all. Could you write down the solution for me?

benice
 2 years ago
Best ResponseYou've already chosen the best response.1so we are dealing with a 10min time frame .... find the expected value 1/6*15=2.5dw:1334385857866:dw

benice
 2 years ago
Best ResponseYou've already chosen the best response.110 minutes is 1/6 of an hour .. you are gettin the expected value for that time frame and calling it alpha

benice
 2 years ago
Best ResponseYou've already chosen the best response.1x=0 as this as said earlier is no call... and we want 1 minus that prob above

ujuge321
 2 years ago
Best ResponseYou've already chosen the best response.0oh now i understand. Thank you so much. I am suck at poisson distribution problems and it seems like problems are having different patterns.

benice
 2 years ago
Best ResponseYou've already chosen the best response.1i suck at them too... watch that video again, it helps me

ujuge321
 2 years ago
Best ResponseYou've already chosen the best response.0okay. I will try. Do you have skype or messenger? I feel like contacting you for math problems.

benice
 2 years ago
Best ResponseYou've already chosen the best response.1if I'm here ill gladly help.

ujuge321
 2 years ago
Best ResponseYou've already chosen the best response.0Help me with this another problem. Celina is an executive who receives an average of 8 phone calls each afternoon between 2 and 4. Assuming that the calls are Poisson distributed, what is the probability that celina will receive three or more calls between 2:30 and 3:30?

benice
 2 years ago
Best ResponseYou've already chosen the best response.1so the average is 4 an hour..... the time frame your dealing with is an hour..... ie2.303.30.....

benice
 2 years ago
Best ResponseYou've already chosen the best response.1so alpha is =4 now P(x>=3)=P(x=3)+P(x=4)+(x=5)...... .alll the way to infinity but life is short so we calculate 1{P(x=0)+P(x=1)+P(x=2)}
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