SOLUTION: Please solve this question for me. Thank you! A student is taking two courses, history and math. The probability the student will pass the history course is .60, and the probab

Algebra ->  Probability-and-statistics -> SOLUTION: Please solve this question for me. Thank you! A student is taking two courses, history and math. The probability the student will pass the history course is .60, and the probab      Log On


   

Question 344945: Please solve this question for me.
Thank you!
A student is taking two courses, history and math. The probability the student will pass the history course is .60, and the probability of passing the math course is .70. The Probability of passing both is .50. What is the probability of passing at least one?
Answer by user_dude2008(1862) About Me  (Show Source):
You can put this solution on YOUR website!
P(pass at least one) = P(pass history) + P(pass math) - P(pass both)

P(pass at least one) = 0.60 + 0.70 - 0.50

P(pass at least one) = 0.80