12. What must be the value of the probability of each random variable? C. -1 < P(X) <1 D. P(X)<1 13. What is the sum of the probabilities of all values of the random variable? C. ΣΡ(Χ)=1 D. ΣΡΧ)-10 А. Р(X) 2 0 B. 0< P(X) < 1 . ΣΡ(Χ) 0 B. ΣΡ(Χ) - 1/10 14. If two socks drawn consecutively without replacement from a drawer containing 4 red socks and 5 green socks. If the value of the random variable X represents the number of green socks, what is the probability of getting two green socks? А. 1/2 В. 1/3 С. 1/4 D. 1/8

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