Question 2
Three machines, A, B, and C, produce respectively 50%, 30% and 20% of the total no. of items of a factory. The percentages of defective output of these machines are 3%, 4% and 5%.
Based on the above data, answer the given subquestions.
Suppose an item is selected at random and found to be defective. The probability that the item was produced by machine A will be ______________