MATHEMATICS · Multi-part · CBSE · Mathematics · Probability · Probability
Problem
On a given day, machine X has a 10% chance of malfunctioning and machine Y has a 7% chance of the same.
(a) Last Thursday *exactly* one of the machines malfunctioned. Find the probability that it was machine X.
(b) At least one of the machines malfunctioned today. Find the probability that machine Y malfunctioned.