Aand b are mutually exclusive events. p(a) = 0.50 and p(b) = 0.30. what is p(a or b)

Since A and B are mutually exclusive, P(A or B) = P(A) + P(B). So P(A or B) = 0.50 + 0.30 = 0.80.

Option: D is the correct answer.

D.   0.80

We know that when two events event A and event B are mutually exclusive then,P(A∩B)=0.

As we know that the P(A or B) is given by:

P(A∪B)=P(A)+P(B)-P(A∩B)

For mutually exclusive events A and B we have:

P(A∪B)=P(A)+P(B)

We have:

P(A)=0.50  and P(B)=0.30

Hence,

P(A∪B)=0.50+0.30

                       Hence,

                     P(A∪B)=0.80

think about the doctor who treated the major and the speaker in the short story "in another country." put yourself in the shoes of the doctor, and based on what you read in the story, write what you think his thoughts about the major and the speaker would be. use the following vocabulary in your response and change the form of these words as needed: detached resign withered

explanation:

step-by-step explanation: