. In preparation for your Biology midterm, you decide to look up past exams to see...

. In preparation for your Biology midterm, you decide to look up past exams to see what kinds of questions were on it. Let B be the event “a question about bacteria shows up on the exam”, and let M be the event “a question about mitosis shows up on the exam”. From past exams, you know that P(B) = 0.3, P(M) = 0.8, and P(M and B) = 0.4. What is the probability of either/or of these types of questions showing up on your Biology midterm?

Solutions

Expert Solution

P(M or B) = P(M) + P(B) - P(M and B)

= 0.8 + 0.3 - 0.4

= 0.7

orchestra answered 1 year ago

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