Question

A random variable X has the probability distribution

X: 1, 2, 3, 4, 5, 6, 7, 8
P(X): 0.15, 0.23, 0.12, 0.10, 0.20, 0.08, 0.07, 0.05

For the events E = X is a prime and F = X < 4, find P(E ∪ F).

• A. 0.50
• B. 0.77
• C. 0.35
• D. 0.87

Hint:

Use P(A∪ B)=P(A)+P(B)-P(A∩ B).

Answer 1

The Correct Option is B