An Experiment Consists of Four Outcomes with P(E₁) = 0

Multiple Choice

An experiment consists of four outcomes with P(E₁) = 0.2, P(E₂) = 0.25, and P(E₃) = 0.35.The probability of P(E₄) is:

A) 0.50
B) 0.90
C) 0.20
D) 0.10
E) none of the above