Using Venn probabilities, it is found that P(F) = -0.07, which is not a probability, as it is a negative value.
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[tex]P(E \cap F) = P(E) + P(F) - P(E \cup F)[/tex]
[tex]0.09 = 0.81 + P(F) - 0.65[/tex]
[tex]0.16 + P(F) = 0.09[/tex]
[tex]P(F) = -0.07[/tex]
P(F) = -0.07, which is not a probability, as it is a negative value.
A similar problem is given at https://brainly.com/question/21421475