STATISTICS I (İSTATİSTİK) - (İNGİLİZCE) Dersi Discrete Probability Distributions soru detayı:

PAYLAŞ:

SORU:
An autopark receives 5 automobiles per hour in average. What is the probability of at most 2 automobiles entering that autopark in an hour?

CEVAP:
P(X ? 2)=P(X=0)+P(X=1)+P(X=2)

for ?=5

P(X=0)=(e^-55⁰)/0!=0.0067

P(X=1)=(e^-55¹)/1!=0.0337

P(X=2)=(e^-5*5²)/2!=0.0842

So:

P(X ? 2)=P(X=0)+P(X=1)+P(X=2)=0.124

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