SOLUTION: Two students are registered for the same class and attend independently of each other, student A 70% of the time and student B 60% of the time. The teacher remembers that on a give

Algebra ->  Probability-and-statistics -> SOLUTION: Two students are registered for the same class and attend independently of each other, student A 70% of the time and student B 60% of the time. The teacher remembers that on a give      Log On


   



Question 892439: Two students are registered for the same class and attend independently of each other, student A 70% of the time and student B 60% of the time. The teacher remembers that on a given day at least one of them is in class. What is the probability that student A was in class that day? (Round your answer to three decimal places.)
.366 is incorrect.

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
Why isn't it 70% ?