Statıstıcs I Deneme Sınavı Sorusu #822031

A call center receives, on average, 6 calls per minute and number of calls follows a Poisson distribution. What is the probability of receiving at most 2 calls at a given minute?


0.062

0.044

0.028

0.014

0.006


Yanıt Açıklaması:

We have to compute P(x=0)+P(x=1)+P(x=2) in order to find the probability of at most 2 calls at a given minute.

P(x=0)=(e-6*60)/0!=0.00248

P(x=1)=(e-6*61)/1!=0.0149   

P(x=2)=(e-6*62)/2!=0.0446

Thus P(x=0)+P(x=1)+P(x=2)=0.06198

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