The probability that could complete this model is B. P(3) = 1/2
Which probability could complete this model?
From the question, we have the following parameters that can be used in our computation:
P(1) = 3/10
Also, we have
P(2) = 1/5
By definition:
The sum of probabilities in a valid distribution model is 1
This means that
P(1) + P(2) + P(3) = 1
Rewrite as
P(3) = 1 - [P(1) + P(2)]
Substitute the known values into the equation
P(3) = 1 - [3/10 + 1/5]
Evaluate
P(3) = 1 - 5/10
So, we have
P(3) = 5/10
Simplify
P(3) = 1/2
Hence, the missing probability is B. P(3) = 1/2
Question
A probability model includes P(1)= 3/10 and P(2)= 1/5.
Which of the following probabilities could complete this model?
A. P(3) = 2/5
B. P(3) = 1/2
C. P(3) = 3/5
D. P(3) = 11/15