JEE Advanced Mathematics question
If the probability of A to fail in an examination is and that of B is then the probability that either A or B fails is
Answer: (C)
Solution
Let , denote the events "A fails", "B fails"; , , and the two students' results are independent.
The book reads "either A or B fails" a
See the full step-by-step solution
Create a free account to read the complete working (3 steps), and practise questions like this in a timed test.
Create a free account