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소12.2.3 Quiz: Probability of Independent and Dependent EventsMAQuestion 3 of 10P(A) = 0.50, P(B) = 0.30, and P(A and B) = 0.15. What is P(A or B)?A. 0.80B. 0.18O C. 0.20D. 0.65SUBMIT

Respuesta :

To calculate the probability of A or B: P(A or B), we need to add P(A) + P(B):

[tex]\begin{gathered} P(A)=0.50 \\ P(B)=0.30 \\ \text{Then:} \\ P(A\text{ or B})=P(A)+P(B)=0.50+0.30=0.80 \end{gathered}[/tex]