SOLUTION: A movie company surveyed 1000 people. 229 people said they went to see the new movie on Friday, 256 said they went on Saturday. If 24 people saw the movie both nights, what is the

Algebra ->  Probability-and-statistics -> SOLUTION: A movie company surveyed 1000 people. 229 people said they went to see the new movie on Friday, 256 said they went on Saturday. If 24 people saw the movie both nights, what is the      Log On


   

Question 1081129: A movie company surveyed 1000 people. 229 people said they went to see the new movie on Friday, 256 said they went on Saturday. If 24 people saw the movie both nights, what is the probability that a person chosen at random saw the movie on Friday or Saturday?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
numerator: P(A or B)=P(A)+P(B)-P(A and B)=229+256-24=461
461/1000=0.461.