ProbabilityEasy
Question
A random variable X has the probability distribution:
For the events E = {X is a prime number} and F = {X < 4}, the probability P (E ∪ F) is
For the events E = {X is a prime number} and F = {X < 4}, the probability P (E ∪ F) is
Options
A.0.87
B.0.77
C.0.35
D.0.50
Solution
P(E ∪ F) = P(E) + P(F) - P(E ∩ F) = 0.62 + 0.50 – 0.35 = 0.77
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