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

PAYLAŞ:

SORU:
A coin is flipped 4 times. What is the probability of getting at least 3 heads?

CEVAP:
At least 3 heads means 3 heads or 4 heads. Thus we have to calculate:

P(H=3)+P(H=4)

P(H=4)=C(4,4)0.5⁴0.5⁰=1/16

P(H=3)=C(4,3)0.5³0.5¹=4/16

P(H=3)+P(H=4)=1/16+4/16=5/16

Discrete Probability Distributions İle İlgili Bütün Soru Cevaplara Geri Dön