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

PAYLAŞ:

SORU:
Calculate the mean and variance for random discrete variable X which has the following distribution:

X=x 1 2 3 4

P(X=x) 0.20 0.10 0.40 0.30

CEVAP:

Total

X=x 1 2 3 4

P(X=x) 0.20 0.10 0.40 0.30

XP(X=x) 0.20 0.20 1.20 1.20 2.8 (Mean)

X-Mean -1.8 -0.8 0.2 1.2

Square(X-Mean) 3.24 0.64 0.04 1.44 5.36

P(X=x)Square(X-Mean) 0.648 0.064 0.016 0.432 1.16 (Variance)

Discrete Probability Distributions İle İlgili Bütün Soru Cevaplara Geri Dön