P(3) = [tex]\frac{1}{2}[/tex] completes the probability model.
What is Probability distribution?
" Probability distribution is the statistical term which explains the possible outcome of any given random event."
Let A , B, and C are three possible outcome of any experiment.
Formula used
P(A) + P(B) + P (C) = P(1)
According to the question,
P(1) = 3/10
P(2) = 1/5
P(3) = ?
Substitute the value in the formula we get,
P(1) + P(2) + P(3) = 1
⇒P(3) = 1 - [P(1) + P(2)]
⇒P(3) = 1- [(3/10) + (1/5)]
⇒P(3) = 1/2
Hence we conclude that Option B is correct.
Learn more about Probability distribution here
https://brainly.com/question/14210034
#SPJ2
