Which of the following is not possible in probability distribution?(a)

1.	Which of the following is not possible in probability distribution?(a) Σ p(x) ≥ 0(b) Σ p(x) = 1 (c) Σ xp(x) = 2 (d) p(x) = -0.5
Answer» (d) p(x) = -0.5 p(x) = -0.5 is not possible since the probability cannot be negative.

Which of the following is not possible in probability distribution?(a) Σ p(x) ≥ 0(b) Σ p(x) = 1 (c) Σ xp(x) = 2 (d) p(x) = -0.5

Answer»

(d) p(x) = -0.5

p(x) = -0.5 is not possible since the probability cannot be negative.